Dizziness After Concussion

Why am I still dizzy after a concussion?

Dizziness is one of the most frequently reported symptoms after a concussion — and one of the most frustrating. It can show up as a spinning sensation, lightheadedness, a feeling of being "off," or unsteadiness that makes everyday activities feel exhausting.

The reason it persists is often because concussion disrupts the vestibular system — the inner ear and brain pathways responsible for balance, spatial orientation, and coordinating head and eye movements. When these pathways are disrupted, your brain receives conflicting signals about where you are in space, which produces that dizzy, disoriented feeling.

Common patterns of post-concussion dizziness

Dizziness after concussion isn't one-size-fits-all. It can present in different ways depending on which part of the vestibular system is affected:

• Dizziness with head movement — turning your head, looking up, or rolling over in bed triggers symptoms. This often points to benign paroxysmal positional vertigo (BPPV), which can develop after a head injury.
• Dizziness in busy environments — grocery stores, crowds, or scrolling on screens feel overwhelming. This suggests visual-vestibular mismatch, where your brain struggles to process conflicting visual and balance information.
• Constant lightheadedness or fogginess — a persistent sense of being unsteady or "floating," even at rest. This may involve central vestibular processing or autonomic dysregulation.
• Dizziness with exertion — symptoms flare during or after physical activity, which can indicate autonomic dysfunction affecting blood pressure regulation.

Why rest alone won't fix vestibular dizziness

The vestibular system doesn't heal the same way a muscle or bone does. When the inner ear or central vestibular pathways are disrupted, your brain needs to actively recalibrate — and it often needs targeted input to do so.

This is why many patients who "rest and wait" find their dizziness persisting for weeks or months. Without the right stimulus, the brain may never fully compensate for the disruption on its own.

How we treat post-concussion dizziness

Treatment depends entirely on the type and cause of your dizziness. That's why a thorough concussion assessment is the essential first step — we need to identify the mechanism before we can fix it.

• BPPV repositioning manoeuvres — if displaced inner ear crystals are causing positional vertigo, a specific repositioning technique can often resolve it in one to two sessions
• Vestibular rehabilitation exercises — gaze stabilization, habituation exercises, and balance retraining that progressively challenge and recalibrate the vestibular system
• Visual-vestibular integration — exercises that retrain the coordination between your eyes, inner ear, and balance centres
• Cervical spine treatment — neck dysfunction can contribute to or mimic vestibular dizziness, and treatment may be needed alongside vestibular rehab

When should I seek help?

If dizziness is still present more than a few days after your concussion — or if it's preventing you from returning to work, school, driving, or daily activities — there's no reason to wait longer. Earlier assessment leads to earlier treatment and, in most cases, faster resolution.

Many of our patients are surprised by how quickly their dizziness improves once the right treatment begins. BPPV, for example, can often be fully resolved in a single session.