What Are the Signs of a Traumatic Brain Injury After an Illinois Accident?

A person can leave an Illinois accident feeling relatively normal and then develop a headache, dizziness, confusion, memory problems, or other symptoms later. Those changes can be signs of a traumatic brain injury (TBI), including a concussion. Symptoms vary from person to person, and some appear immediately while others develop over hours or days. The Centers for Disease Control and Prevention (CDC) confirms that mild TBI and concussion symptoms can affect how a person feels, thinks, acts, or sleeps and may not all appear at once.

If you have symptoms after an accident, medical evaluation should come first. CDC guidance on mild TBI and concussion symptoms Legal questions about responsibility and compensation are separate and depend on the facts of the accident, the medical evidence, and applicable Illinois law.

Key Takeaways

• TBI and concussion symptoms can appear immediately or develop over hours or days.
• Common symptoms include headache, dizziness, nausea, vision problems, fatigue, memory problems, difficulty concentrating, mood changes, and sleep disturbances.
• Loss of consciousness is not required for a person to have a concussion or other TBI.
• Some TBI danger signs require emergency medical attention, including worsening headache, repeated vomiting, seizures, weakness or numbness, slurred speech, increasing confusion, or difficulty waking.
• A normal CT scan does not necessarily rule out a concussion or mild TBI; diagnosis also depends on clinical evaluation and symptoms.
• If another party’s negligence caused the accident, an injured person may have a personal injury claim for qualifying economic and non-economic losses.

What Is a Traumatic Brain Injury?

A traumatic brain injury occurs when a bump, blow, jolt, or penetrating injury disrupts normal brain function. TBIs exist on a spectrum, from concussions and other mild injuries to severe injuries involving lasting impairment.

TBIs can occur in car and truck crashes, motorcycle collisions, pedestrian and bicycle accidents, falls, workplace accidents, and other incidents involving significant force. A person does not have to strike their head directly to suffer a brain injury; rapid acceleration, deceleration, or other force can also injure the brain.

Loss of consciousness is not required. A person may remain awake throughout an accident and still have a concussion or TBI.

Immediate Signs of a Traumatic Brain Injury

Some symptoms begin at the scene or within the first several hours. Possible symptoms include:

• Headache or pressure in the head.
• Dizziness or balance problems.
• Nausea or vomiting.
• Blurred or double vision.
• Sensitivity to light or noise.
• Feeling foggy, slowed down, dazed, or unusually tired.
• Confusion or difficulty understanding what happened.
• Memory or concentration problems.
• Slurred speech or difficulty finding words.
• Ringing in the ears.
• Mood, behavior, or personality changes.
• Loss of consciousness.

Delayed TBI Symptoms That Can Appear Hours or Days Later

TBI symptoms do not always appear immediately. According to the CDC, some mild TBI and concussion symptoms may develop hours or days after the injury. A person may initially feel fine and later notice changes in thinking, mood, sleep, or physical function.

• Persistent or worsening headaches.
• Difficulty concentrating or paying attention.
• Memory problems or trouble recalling recent events.
• Feeling unusually tired or slowed down.
• Sleeping more or less than usual or having trouble falling asleep.
• Irritability, anxiety, sadness, or increased emotional sensitivity.
• Dizziness or balance problems.
• Sensitivity to light or noise.
• Vision problems.

New, worsening, or unexplained symptoms after an accident deserve medical attention. Do not assume that feeling normal immediately after a crash means that no brain injury occurred.

Physical, Cognitive, Emotional, and Sleep-Related Symptoms

Physical Symptoms

• Dizziness or balance problems.
• Nausea or vomiting.
• Vision problems.
• Sensitivity to light or noise.
• Fatigue or low energy.

Cognitive Symptoms

• Difficulty concentrating.
• Memory problems.
• Feeling foggy or slowed down.
• Difficulty thinking clearly.
• Trouble following conversations or finding words.

Emotional and Behavioral Symptoms

• Anxiety or nervousness.
• Sadness or feeling more emotional than usual.
• Changes in behavior or personality.

Sleep Symptoms

• Sleeping more than usual.
• Sleeping less than usual.
• Trouble falling asleep.

Mild, Moderate, and Severe TBI

Medical professionals classify TBI severity using clinical factors that can include the level and duration of altered consciousness, post-traumatic amnesia, neurological findings, and imaging results. The labels mild, moderate, and severe describe the injury’s severity; they do not mean that a mild TBI is unimportant.

Mild TBI and Concussion

A concussion is a form of mild traumatic brain injury. Symptoms can include headache, dizziness, confusion, memory or concentration problems, fatigue, mood changes, and sleep disturbances. Many people recover over time, but some experience symptoms that persist longer.

Moderate and Severe TBI

Moderate and severe TBIs can involve more significant neurological impairment, prolonged altered consciousness, structural brain injury, or other serious complications. These injuries may require hospitalization, rehabilitation, and long-term support.

A Normal CT Scan Does Not Necessarily Rule Out a TBI

A CT scan is valuable for detecting certain urgent structural problems, such as bleeding or skull fractures. However, a normal CT scan does not necessarily mean that a person has no concussion or mild TBI. Clinical evaluation, symptoms, and follow-up care can remain important.

Eliasik Law has also addressed this issue in its related article, Can You Have a Concussion or TBI With a Normal CT Scan After an Accident?.

When Should You Seek Emergency Medical Attention?

After a bump, blow, or jolt to the head or body, certain symptoms require immediate emergency medical attention. The CDC identifies the following adult danger signs:

• A headache that gets worse and does not go away.
• Repeated vomiting.
• Weakness, numbness, or decreased coordination.
• Convulsions or seizures.
• Slurred speech or unusual behavior.
• Increasing confusion, restlessness, or agitation.
• One pupil larger than the other.
• Loss of consciousness accompanied by increasing drowsiness or inability to wake.
• Inability to recognize people or places.

Call 911 or go to an emergency department if these danger signs occur. Do not drive yourself when emergency symptoms are present.

What Medical Testing May Be Used to Evaluate a TBI?

Doctors may use a combination of the patient’s history, neurological examination, symptom assessment, and imaging or other testing when appropriate. A CT scan may be used to look for acute bleeding, skull fractures, or other structural problems. MRI may provide additional information in selected cases. Neuropsychological testing can also help assess cognitive functioning when clinically appropriate.

There is no single test that answers every TBI question. The appropriate evaluation depends on the symptoms, mechanism of injury, clinical findings, and medical judgment.

How Can a TBI Affect Your Daily Life?

• Persistent headaches or fatigue can interfere with normal routines.
• Memory and concentration problems can make work or school more difficult.
• Sleep problems can affect energy, mood, and recovery.
• Mood or behavioral changes can affect relationships and social activities.
• More serious injuries may cause lasting physical, cognitive, or emotional limitations.

How Illinois Law Can Apply to an Accident-Related TBI

When another person’s negligence causes an accident and resulting brain injury, the injured person may have a personal injury claim. The specific legal theory depends on what caused the accident—for example, a negligent driver, unsafe property condition, or another party’s conduct.

A personal injury claim generally requires evidence establishing the responsible party’s legal duty, a breach of that duty, causation, and damages. TBI claims can require particularly careful medical documentation because symptoms may be invisible and may evolve over time.

What Compensation May Be Available?

Medical expenses: Emergency treatment, diagnostic testing, specialist care, therapy, rehabilitation, medication, and reasonable future medical care.

Lost income: Wages lost because of the injury and, when supported by the evidence, diminished future earning capacity.

Pain and suffering: Physical pain and the emotional and functional effects of the injury.

Loss of normal life: The ways the injury affects activities, relationships, independence, and everyday life.

Disability or disfigurement: Damages associated with lasting impairment or visible changes caused by the injury.

How Do You Prove a TBI Claim in Illinois?

Useful evidence can include:

• Emergency-room and other medical records.
• Neurological evaluations and follow-up records.
• CT, MRI, and other relevant diagnostic results.
• Neuropsychological or cognitive testing when appropriate.
• Witness statements about the accident and changes in behavior or functioning.
• Employment records documenting missed work or reduced ability to perform job duties.
• A symptom journal or other contemporaneous records describing changes after the accident.
• Expert testimony when the medical or financial issues require specialized explanation.

Insurance companies may question whether symptoms were caused by the accident, particularly when symptoms were delayed or imaging was normal. Consistent medical care and accurate documentation can help establish the connection between the accident, the injury, and the resulting losses.

Illinois Statute of Limitations for Personal Injury Claims

For many Illinois personal injury actions, 735 ILCS 5/13-202 provides a two-year limitations period. However, the correct deadline can depend on the defendant and circumstances of the claim.

Illinois also has special rules for minors and people under a legal disability under 735 ILCS 5/13-211. Claims involving government entities can also have special requirements and shorter deadlines.

Do not rely on a general two-year rule without checking the specific facts of your case. Early legal review can also help preserve evidence before surveillance footage, witness information, and other records become difficult to obtain.

What Should You Do After an Illinois Accident If You Suspect a TBI?

Get medical attention. Tell the medical provider about the accident and every symptom you are experiencing, even if a symptom seems minor.

Follow your treatment plan. Attend follow-up appointments and follow reasonable medical recommendations.

Document your symptoms. Keep a simple record of headaches, memory problems, sleep changes, fatigue, mood changes, and limitations in daily activities.

Preserve accident evidence. Keep photographs, crash information, witness details, medical records, bills, and other relevant documentation.

Be cautious with insurance statements. Do not guess about your injuries or make unnecessary admissions. Consider obtaining legal advice before giving a recorded statement to the other side’s insurer.

Avoid exaggeration. Describe your symptoms accurately and consistently. Credible documentation is more useful than overstated claims.

Get legal advice when appropriate. A lawyer can evaluate liability, insurance coverage, deadlines, medical evidence, and potential damages.

Why Insurance Companies May Challenge TBI Claims

Brain injuries can be difficult to prove because many symptoms are not visible to other people. An insurer may question whether the symptoms are related to the accident, whether a pre-existing condition contributed to them, or whether the injury is as serious as claimed.

A normal CT scan may become part of that dispute, but it does not by itself answer whether a concussion or mild TBI exists. The medical record, clinical findings, treatment history, and other evidence must be considered together.

How Eliasik Law Handles Brain Injury Claims

Eliasik Law represents injured people in Chicago and throughout Illinois in personal injury matters that include traumatic brain injuries. The firm’s personal injury practice specifically lists traumatic brain injuries among the types of claims it handles.

The firm’s Personal Injury practice page describes its work for accident victims, including people with traumatic brain injuries.

The firm also reports a $4 million result involving irreversible brain damage in a medical-negligence case. Results in individual cases depend on their facts and do not guarantee a particular outcome in another case.

Talk to Eliasik Law About an Accident-Related Brain Injury

If you developed headaches, dizziness, memory problems, confusion, or other symptoms after an Illinois accident, do not let a normal-looking scan or the absence of obvious physical injuries cause you to ignore the problem. Your health should come first, and the legal value of a claim depends on the evidence and circumstances of the injury.

If you believe someone else’s negligence caused your TBI, contact Eliasik Law for a consultation. The firm handles personal injury claims involving traumatic brain injuries and represents clients throughout Chicagoland and elsewhere in Illinois.

The firm states that personal injury representation is handled on a contingency basis, with attorney fees collected only if compensation is recovered, subject to the terms of the representation agreement.

FAQs

Can I have a TBI if I did not lose consciousness?

Yes. Loss of consciousness is not required for a concussion or other TBI. Symptoms such as headache, dizziness, confusion, memory problems, and difficulty concentrating can occur without blacking out.

How long after an accident can TBI symptoms appear?

Some symptoms appear immediately, while others can develop over hours or days. New or worsening symptoms after an accident should be evaluated by a medical professional.

Can a normal CT scan rule out a concussion?

No. A CT scan is useful for detecting certain structural injuries, but a normal CT does not necessarily rule out a concussion or mild TBI. Clinical evaluation and symptoms remain important.

What should I do if an insurer says my TBI is not real?

Continue appropriate medical care and preserve your medical records and other evidence. If another party may be legally responsible, consider having an Illinois personal injury attorney review the claim and medical evidence.

How much is an Illinois TBI case worth?

There is no reliable fixed amount. Potential compensation depends on liability, injury severity, medical treatment, lost income, future care needs, disability, and the effect of the injury on daily life.

Do I need a lawyer for a mild concussion claim?

Not every claim requires a lawyer, but legal advice can be useful when liability is disputed, symptoms persist, insurance coverage is complicated, or the insurer is challenging the diagnosis or value of the claim.

Can I file a claim if my TBI happened at work?

A work-related TBI may involve Illinois workers’ compensation benefits. If a third party outside the employment relationship also caused the injury, a separate claim may be possible. The correct path depends on the circumstances.

What tests are used to evaluate a TBI?

Doctors may use a neurological examination, symptom history, CT or MRI imaging when appropriate, and neuropsychological or cognitive testing when clinically indicated. No single test detects every form of TBI.

How long does it take to recover from a TBI?

Recovery varies significantly. Many people with mild TBI or concussion improve over time, while some experience persistent symptoms. Moderate and severe injuries can require longer rehabilitation and may cause lasting impairment.

This article provides general information and is not legal advice. Reading it does not create an attorney-client relationship.

Disclaimer: This article is provided by Eliasik Law for general informational purposes only and does not constitute legal advice. Reading this content does not create an attorney-client relationship. Laws, fees, regulations, and court decisions referenced may change. For advice on your specific situation, please contact Eliasik Law directly to schedule a consultation.