Body Aches After a Car Accident in Illinois: What to Do

Published: September 15, 2026

Body aches after a car accident need a medical visit, even when the pain started later. Call 911 for a headache that gets worse and does not go away, repeated vomiting, confusion, weakness or numbness, breathing problems, or sudden sharp or severe belly pain. In an Illinois injury claim, the visit also records what was hurt and when.

You felt shaken up at the scene but mostly fine, and you told the officer you were okay. Now it is a day or two later and everything hurts. Do you need to be seen? Yes. Take it in this order: check for emergency signs, get seen, tell the provider everything, then deal with records, bills and the adjuster’s call. You can follow every step with incomplete information. If you are reading this for someone else who was in the car, a spouse, a parent or a child, the same steps apply, and you can make the calls for them.

Which symptoms after a crash need emergency care right now?

Call 911 or go to an emergency department for any of these. The CDC lists these danger signs in adults on its concussion and traumatic brain injury page:

A headache that gets worse and does not go away.
Weakness, numbness, decreased coordination, convulsions or seizures.
Repeated vomiting.
Slurred speech or unusual behavior.
One pupil (the black part in the middle of the eye) larger than the other.
Cannot recognize people or places, or is confused, restless or agitated.
Loss of consciousness, looking very drowsy, or cannot be woken up.

The CDC also says some concussion symptoms may appear right away and others may not appear for hours or days after the injury. The CDC’s list for children starts with the same signs and adds a child who will not stop crying or will not nurse or eat. Beyond the head, MedlinePlus lists emergency warning signs in adults that include breathing problems, severe abdominal pain or pressure, sudden severe pain anywhere in the body, sudden dizziness, weakness or a change in vision, and head or spine injury. Both lists are examples. They cannot rule out an emergency, so when you are unsure, call 911. If you are checking on someone else, go through the lists with them and make the call yourself if you see any of it.

What about a seat-belt bruise or belly pain?

Get medical help right away. MedlinePlus says to get help right away or call 911 after a recent injury to the abdomen, for sudden sharp abdominal pain, or when the belly is tender, rigid or hard to the touch. A bruise across the abdomen from the seat belt is an injury to the abdomen. A 2022 study of adults with seat-belt bruising treated at nine trauma centers found that abdominal seat-belt bruising can accompany an internal injury, which is why it needs medical evaluation. Tell the provider about the belt mark even when the pain feels manageable.

Why does the neck hurt after a crash?

Whiplash is one cause. MedlinePlus describes whiplash as an injury to the muscles and ligaments of the neck, and pain and stiffness in the neck often come with it. Whether that is what happened to you is a question for the provider who examines you. The same goes for back and shoulder pain: the provider sorts out the cause. Tell that provider where it hurts and when it began.

What if you declined the ambulance or left the emergency room early?

If you declined the ambulance because you could stand, talk and drive home, or left a full waiting room because the pain felt bearable, you decided with what you knew then. The decision in front of you now is whether to be seen today. Tell the provider what you decided at the scene and why, so the record shows the whole sequence.

What should you tell the provider?

Describe the crash and every symptom, including the ones that seem too small to mention. Useful details:

How the crash happened: rear-ended at a stop, hit on the driver’s side, whether the airbag deployed, whether you were belted.
Where you hurt, when each pain began, and what makes it better or worse.
Headache, dizziness, nausea, vision changes, numbness or tingling, and trouble sleeping or concentrating.
Any belt bruising or belly tenderness.
Injuries or pain in the same areas before the crash, and how you were doing the week before.
What you can no longer do: lifting, driving, sitting through a shift, sleeping through the night.

Ask what changes should bring you back, and go back if they happen. If you have already been seen once, bring the discharge papers.

How do medical records work in an Illinois injury claim?

The records show what was injured and when. To recover medical expenses in an Illinois injury claim, the claim must show that the treatment was needed because of the crash, that the charges were reasonable, and that you paid or owe the bills. The records and the providers who treated you explain the connection between the crash and the injury.

A gap between the crash and your first visit becomes an argument. The other driver’s insurer may argue that the delay shows the crash caused less harm than you report, or that something else caused the pain. The answer to that argument is the record itself together with the reason for the delay: the emergency room wait ran past your shift, you had no ride, you were worried about the bill, or the pain got worse after you got home. Tell the provider the reason so it is written down accurately, and tell your lawyer the same thing.

Keep the paperwork in one place: discharge instructions, appointment cards, bills, explanation of benefits statements from your health plan, and pharmacy receipts. A short dated note of your symptoms and what you could not do that day helps you remember, and it helps the record match what happened.

Who pays for the visit while the claim is open?

Who pays first depends on your health plan and your auto policy. Medical payments coverage on an auto policy is optional coverage that some policies carry. Illinois does not require it to pay before health insurance, and whether the auto insurer can be repaid out of the recovery, meaning the money the claim brings in, depends on the policy language. Your health plan may have repayment rights of its own, and those need review for your situation. Illinois limits how much of a settlement medical liens can take; a medical lien is a provider’s legal claim to be paid back out of the settlement for an unpaid bill. The details depend on who is owed. Bring your health insurance card to the first appointment. For the first call with a lawyer, the declarations page of your auto policy (the summary page that lists your coverages) helps, and it can come later. Our article on paying medical bills while an injury case is pending in Illinois covers the sources of payment and how repayment is handled at the end.

What do you do when the adjuster calls?

Get advice before you give a recorded statement to the other driver’s insurer. A recorded statement is the adjuster’s recorded interview with you about the crash and your injuries. You do not owe that insurer a recorded statement; in that call the company is handling the other driver’s claim, not yours. Requests from your own insurer are different: your policy has cooperation duties, and refusing can put your own coverage at risk, so ask before you refuse and before you answer. The same goes for papers to sign or a check to cash: tell your lawyer before you accept any settlement from the other driver’s insurer. If you do speak with any adjuster, be accurate, and say plainly when a symptom or a diagnosis is still being evaluated. Our article on whether you have to give the adjuster a recorded statement covers both situations.

What is the next step?

Be seen, then call. You can call with what you have. The consultation is free, and injury cases are handled on a contingency fee, which means the fee is one-third of the recovery and comes out of it. Robert Parker personally handles every case the firm accepts.

If another driver may have caused your crash, our Peoria personal injury team gathers the evidence, handles the insurers, and works out what the claim is worth.

Call 309-673-0069 or use the contact page to set up a free consultation.

Frequently Asked Questions

When is soreness after a car accident an emergency?

Call 911 for any CDC danger sign: a headache that gets worse and does not go away; weakness, numbness, decreased coordination, convulsions or seizures; repeated vomiting; slurred speech or unusual behavior; one pupil larger than the other; not recognizing people or places, or being confused, restless or agitated; loss of consciousness, or being very drowsy or unable to be woken. MedlinePlus adds breathing problems, severe belly pain or pressure, sudden severe pain anywhere, sudden dizziness or vision change, and head or spine injury. When unsure, call 911.

Can symptoms show up a day or more after the crash?

For concussion, yes. The CDC says some concussion symptoms may appear right away and others may not appear for hours or days after the injury. For any other symptom that appears later, tell a provider when it started so it can be evaluated and recorded.

Can I still make an Illinois injury claim if I skipped the emergency room the day of the crash?

Yes. The claim depends on who caused the crash and on what the records show was injured and when. A delay is an argument the other driver’s insurer may make about cause and seriousness, and the records together with the reason for the delay answer it.

Do I have to give the other driver’s insurance company a recorded statement?

No. You do not owe the other driver’s insurer a recorded statement, and you should get advice before giving one. Your own insurer is a different matter: your policy sets cooperation duties, so ask before you refuse or answer a request from your own company.

Who pays the medical bills while an Illinois injury claim is pending?

It depends on your health plan and your auto policy. Medical payments coverage on an auto policy is optional, a health plan may have repayment rights of its own, and Illinois limits how much of a settlement medical providers can claim back through liens for unpaid bills. Each of those has to be checked against your own policies.

Can a soft tissue injury such as whiplash be part of an Illinois injury claim?

Yes, when the records and the providers who treated you connect the injury to the crash. The claim must also show that the treatment was needed because of the crash and that the charges were reasonable, and what can be collected depends on who was at fault.

If you or a loved one has been injured in a car accident, the our Peoria personal injury team are ready to help you pursue the compensation you deserve.

Body Aches After a Car Accident: Do You Need to Be Seen?