Migraine and Dizziness: Vestibular Migraine in Depth

Dizziness and vertigo are among the most commonly reported symptoms in people with migraine, yet the connection between migraine and vestibular dysfunction is frequently missed in clinical practice. Patients with episodic vertigo are often evaluated for inner ear disorders before migraine is considered, and patients presenting to headache clinics may not report vestibular symptoms because they do not connect them to their migraine diagnosis.

Vestibular migraine, a condition characterized by episodic vestibular symptoms in people with a history of migraine or migrainous features, is now recognized as the most common cause of recurrent episodic vertigo in adults.

What Is Vestibular Migraine

Vestibular migraine was formally recognized by the International Headache Society and the Barany Society in 2012. The diagnosis requires a current or prior history of migraine, a history of moderate or severe vestibular episodes lasting between five minutes and seventy-two hours, at least fifty percent of episodes associated with at least one migrainous feature such as headache, photophobia, phonophobia, or visual aura, and symptoms not better explained by another diagnosis.

A key diagnostic feature is that the vertigo episodes in vestibular migraine do not require a simultaneous headache. Many people with vestibular migraine experience vertigo as their primary or most disabling symptom, with headache present in only a minority of episodes.

How Vestibular Migraine Differs From Meniere's Disease

Meniere's disease, an inner ear disorder characterized by episodic vertigo, fluctuating hearing loss, tinnitus, and ear fullness, shares clinical features with vestibular migraine and the two conditions can be difficult to distinguish. Key differences include that Meniere's disease characteristically produces unilateral hearing loss and ear fullness that are absent in most vestibular migraine presentations, and that Meniere's episodes tend to be shorter than vestibular migraine episodes.

The overlap in symptoms between the two conditions means that some people carry both diagnoses, and the distinction may require evaluation by a specialist in vestibular disorders.

Interictal Vestibular Dysfunction

Between vestibular migraine episodes, many affected people experience persistent mild imbalance, motion sensitivity, and visual vertigo — the discomfort produced by moving visual environments such as crowds, busy traffic, or scrolling screens. This interictal vestibular dysfunction reflects the ongoing hyperexcitability of vestibular processing systems in the migraine nervous system that persists between discrete episodes.

Motion sickness, which is significantly more prevalent in people with migraine than in the general population, may reflect the same underlying vestibular hyperexcitability. The migraine brain's tendency toward sensory sensitization affects vestibular processing as it does visual, auditory, and olfactory processing.

Diagnosis and Evaluation

Diagnosing vestibular migraine requires a careful clinical history that captures both the migraine features and the vestibular episode characteristics. Audiological testing is typically normal in vestibular migraine, which helps distinguish it from Meniere's disease. Vestibular function testing may show abnormalities during or between episodes, but findings are variable and not diagnostic on their own. A neurologist with vestibular expertise or an otoneurologist is often the most appropriate specialist for complex presentations.

Treatment

Treatment of vestibular migraine follows the general principles of migraine management, with acute and preventive medications selected from the standard migraine pharmacopeia. Vestibular rehabilitation, a form of physical therapy that uses specific exercises to improve central vestibular compensation, can reduce interictal motion sensitivity and improve functional balance in people with persistent vestibular symptoms between episodes.