Condition Guide

Headaches & Dizziness After a Car Accident

Post-traumatic headaches and vestibular dysfunction are among the most debilitating consequences of collision injuries. Whether cervicogenic, tension-type, or migraine-like, these symptoms often indicate underlying cervical injury, concussion, or vestibular damage that demands thorough evaluation.

Book Your Evaluation → Call (707) 658-2534

Headaches after a car accident can come from an injured upper neck, a concussion, or both. Doctors link a headache to the crash when it begins within seven days. In Petaluma, Ryan Lloyd, DC, QME, tests your neck, cranial nerves and eye movements to find the source. A sudden severe headache, repeated vomiting, confusion or weakness needs an emergency room first.

Go to an emergency room or call 911 if you have:

A seizure
Passing out, or trouble staying awake
One pupil larger than the other, or double vision
Slurred speech, weakness, numbness or poor coordination
Confusion or unusual behavior that is getting worse
A headache that keeps getting worse and does not go away
Repeated vomiting

If none of these apply, book an evaluation this week at our Petaluma clinic or call (707) 658-2534.

Sources: CDC HEADS UP, Signs and Symptoms of Concussion.

Types of Post-Traumatic Headache

Car accidents produce multiple headache types: cervicogenic headaches originating from injured neck structures — often a whiplash injury — tension-type headaches from sustained muscle guarding, and migraine-like headaches triggered by neurological disruption. Each type requires distinct diagnosis and treatment.

Dizziness & Vestibular Dysfunction

Benign paroxysmal positional vertigo (BPPV) occurs when collision forces dislodge otoconia in the inner ear. Vestibular dysfunction can also arise from direct concussive injury, and after whiplash, some people sense their head position less accurately, especially those with dizziness. Symptoms include room-spinning vertigo, imbalance, and nausea.

Impact on Daily Function

Chronic headaches and dizziness profoundly affect work capacity, driving ability, concentration, and sleep quality. These symptoms can be more functionally disabling than structural injuries, yet they are frequently undertreated and inadequately documented in personal injury cases.

Diagnosis

How we diagnose headaches & dizziness

A systematic evaluation that identifies the origin of symptoms and differentiates between cervical, vestibular, and neurological causes.

Cranial Nerve Examination

A complete cranial nerve assessment evaluates all 12 nerve pairs. This examination identifies subtle neurological findings that suggest concussion, brainstem involvement, or cranial nerve dysfunction.

Oculomotor & Vestibular Testing

Smooth pursuit, saccadic eye movement, convergence testing, and the vestibulo-ocular reflex assess both central and peripheral vestibular function. The Dix-Hallpike maneuver identifies BPPV, while head impulse testing evaluates semicircular canal function.

Cervicogenic Headache Screening

Upper cervical flexion-rotation testing, segmental palpation of C0-C3, and reproduction of headache with cervical provocation help identify headaches originating from damaged cervical structures.

Cervical Spine Evaluation

Detailed assessment of cervical range of motion, segmental joint play, and upper cervical ligament integrity. Cervical instability and upper cervical dysfunction — often stemming from neck pain and cervical spine injury — are frequently the underlying drivers of both headaches and cervicogenic dizziness.

Symptom Pattern Analysis

We carefully characterize headache location, quality, duration, triggers, and associated symptoms. Combined with validated outcome measures for headache disability and dizziness handicap, this analysis differentiates headache types and guides targeted treatment.

Treatment

How we treat headaches & dizziness

A multi-modal rehabilitation program that addresses the cervical, vestibular, and neuromuscular components of post-traumatic headache and dizziness.

Progressive Resistance Training

Deep cervical flexor strengthening and cervicothoracic stabilization exercises address the postural and muscular dysfunction that drives cervicogenic headaches. Progressive loading builds the strength and endurance of muscles that support the head and neck.

Functional Resistance Rehabilitation

Vibration Therapy

Vibration training hasn't been studied for headaches after a crash. Where balance or neck control is part of the problem, the platform can be one setting for that exercise, in short, supervised sessions. Tell us right away if you feel dizzy.

Neuromuscular Activation Platform

Shockwave Therapy

In two small trials of headaches that come from the neck, adding shockwave to neck exercises or rehab eased headache pain and disability more than a sham. It hasn't been studied for headaches after a car crash.

Added to Neck Rehab

Chiropractic Adjustments

Quick, short pushes by hand, or gentler mobilization, to sore, stiff joints in the neck and upper back. For long-lasting headaches that come from the neck, a trial of 18 visits of neck and upper-back adjustments over six weeks halved headache days, about 3 fewer every four weeks than light massage, for up to a year. For headaches that start after a head injury, research is too thin to say, so we check for other causes first. For BPPV, we use canalith repositioning (the Epley maneuver).

✓ Neck and upper-back adjustments
✓ Gentle, low-force techniques early after a crash
✓ Canalith repositioning for BPPV (Epley maneuver)
✓ Suboccipital muscle release techniques
✓ Vestibular rehabilitation exercises
✓ Progress rechecked at every visit

Our Difference

What makes us different

Headaches and dizziness after a crash can have several causes, so we look for each one. Here is how we approach them.

QME Designation

As a Qualified Medical Evaluator, Dr. Lloyd provides impairment ratings for post-traumatic headache and vestibular dysfunction. His cranial nerve examinations and vestibular assessments produce the objective findings that substantiate these often-subjective complaints.

Defensible Documentation

Cranial nerve findings, vestibular test results, and headache disability scores are documented with clinical precision. Our reports connect specific collision mechanisms to neurological findings, establishing the causal relationship your case demands.

Movement-Based Approach

We pair hands-on care with exercises for your neck, inner ear and eye movements, chosen from your exam, and we recheck your progress at every visit.

Common Questions

Frequently Asked Questions About Headaches After a Car Accident

What causes headaches after a car accident?

Post-traumatic headaches have multiple causes: cervicogenic headaches originate from damaged neck joints and muscles referring pain upward; post-concussion headaches result from brain injury during impact; tension-type headaches develop from sustained muscle guarding in the neck and shoulders; TMJ disorders can also refer pain to the temples and forehead; and occipital neuralgia occurs when the occipital nerves at the base of the skull are compressed or irritated. Identifying the type determines the treatment approach.

What's the difference between a cervicogenic headache and a concussion headache?

Cervicogenic headaches start in the neck and radiate upward — they worsen with neck movement and can be reproduced by pressing on specific cervical joints. Concussion headaches are more diffuse, often accompanied by cognitive symptoms like brain fog, sensitivity to light and noise, and difficulty concentrating. Dr. Lloyd distinguishes between them using neurological examination and cervical provocation testing, since the treatment differs significantly.

When should I worry about headaches after a car accident?

Seek immediate medical attention if headaches are accompanied by worsening confusion, repeated vomiting, seizures, weakness on one side of the body, slurred speech, or a headache that becomes severely intense within seconds. These can indicate serious intracranial injury. For persistent but non-emergency headaches — especially those that worsen over the first week — an evaluation with Dr. Lloyd is recommended to identify the cause and begin treatment.

How does chiropractic care help headaches after a car accident?

For long-lasting headaches that come from the neck, a trial of 18 visits of neck and upper-back adjustments over six weeks halved headache days, about 3 fewer every four weeks than light massage, for up to a year. For headaches that start after a head injury, research is too thin to say, so we check for other causes first. We pair adjustments with neck exercises and soft tissue therapy to the muscles at the base of the skull and the upper shoulders. For concussion-related headaches, treatment focuses on neck rehabilitation while coordinating with concussion management protocols.

How long do headaches last after a car accident?

It varies. In the trial of long-lasting headaches that come from the neck, care ran for six weeks, and the drop in headache days lasted up to a year. Our guide to how the underlying neck injury heals explains the timelines, and we recheck your progress at every visit.

Get your headaches and dizziness evaluated

Post-traumatic headaches and vestibular symptoms deserve a careful assessment. Book your evaluation or call us directly. Same-week appointments available.