What Vertigo Actually Is — And What It Isn't
Patients use the word "dizziness" for very different sensations, and getting the description right is the single most important step in diagnosis. Vertigo is the specific illusion that you or your surroundings are spinning, tilting or moving when they are not. It is quite different from light-headedness (feeling faint, often from low blood pressure or standing up quickly), disequilibrium (unsteadiness on the feet), and pre-syncope (the feeling you are about to black out).
This distinction matters because true spinning vertigo almost always points to the balance (vestibular) system — either the inner ear or the parts of the brain that process balance. When a neurologist hears a clear account of spinning triggered by head movement, the diagnostic path narrows immediately. When you tell your doctor "I feel dizzy," describe exactly what you feel: does the room spin? Is it triggered by turning over in bed? Does it come with hearing change, headache or double vision? These details often reveal the diagnosis before any test.
The 5 Main Types of Vertigo
Almost all vertigo falls into five categories, and telling them apart determines the treatment.
1. BPPV (Benign Paroxysmal Positional Vertigo)
The most common and most curable cause. Tiny calcium crystals (otoconia) that normally sit in one part of the inner ear become dislodged into the semicircular canals, sending false movement signals. The result is brief, intense spinning triggered by specific head positions — rolling over in bed, looking up, or bending down. Each episode lasts seconds to a minute, but attacks recur until treated.
2. Vestibular Neuritis
Viral inflammation of the vestibular (balance) nerve. It causes sudden, severe, constant vertigo lasting one to three days, often with nausea and vomiting, but no hearing loss. Recovery takes days to weeks as the brain compensates.
3. Labyrinthitis
Similar to vestibular neuritis but the inner-ear labyrinth is involved, so hearing is also affected alongside the vertigo. It usually follows a viral illness.
4. Ménière's Disease
Caused by fluid pressure build-up in the inner ear (endolymphatic hydrops). It produces episodic attacks of vertigo lasting 20 minutes to several hours, with a classic combination of hearing loss, tinnitus (ringing) and a feeling of ear fullness. It is chronic and managed rather than cured.
5. Central Vertigo
Vertigo originating in the brain — from stroke, tumour, or multiple sclerosis. The spinning may be milder but is often constant and accompanied by other neurological signs. This is the type that must never be missed.
The Dix-Hallpike Test — How Doctors Diagnose BPPV
The Dix-Hallpike test is a simple, two-minute bedside manoeuvre that confirms BPPV without any scan. The neurologist quickly moves you from sitting upright to lying flat with your head turned about 45 degrees to one side and slightly extended over the edge of the couch. If BPPV is present in that ear, this position triggers a brief burst of vertigo and a characteristic pattern of eye movements called nystagmus, usually after a short delay of a few seconds.
Watching the direction and timing of the nystagmus tells the neurologist exactly which ear and which canal is affected — information that directly guides the corrective treatment. The test is safe and quick, though it briefly reproduces the vertigo, which understandably feels unpleasant for a few seconds.
The Epley Manoeuvre — The 10-Minute Cure for BPPV
Once the affected canal is identified, the Epley manoeuvre uses gravity to roll the displaced crystals out of the semicircular canal and back to where they belong. The neurologist guides your head and body through a specific sequence of four to five positions, holding each for about 30 seconds. The whole process takes roughly ten minutes, is painless, and requires no medication.
Success rates are excellent — 80–90% of BPPV resolves after a single treatment, and over 95% after a repeat. Many patients feel dramatically better immediately. This is one of the most satisfying treatments in all of medicine: a distressing, disabling symptom often fixed completely in one short visit.
When Vertigo Is an Emergency (Red Flags)
While most vertigo is benign, some is a warning sign of stroke. Seek emergency care immediately if vertigo comes with any of the following red flags — remembered by the sudden onset of neurological symptoms:
- Double vision or loss of vision
- Slurred or difficult speech
- Facial droop or weakness
- Weakness or numbness in an arm or leg
- Severe, sudden headache unlike any before
- Inability to walk or stand, or falling to one side
- Severe unremitting vertigo that does not fit the pattern of BPPV
These can indicate a stroke in the brainstem or cerebellum. Call +91 82888 43800 (Gini 24/7 emergency) or go straight to the nearest emergency department. When in doubt, get it checked — a benign cause is reassuring, but a missed stroke is catastrophic.
Treatment for Each Type of Vertigo
Treatment follows the diagnosis:
- BPPV — the Epley or other repositioning manoeuvre; medication is largely unnecessary.
- Vestibular neuritis — short-term anti-nausea and vestibular-sedative medication in the acute phase, then vestibular rehabilitation exercises to speed the brain's compensation; a short steroid course may help.
- Labyrinthitis — as for neuritis, with attention to hearing; sometimes antivirals or steroids.
- Ménière's disease — a low-salt diet, betahistine, diuretics, and — in resistant cases — intratympanic injections or surgery.
- Central vertigo — urgent imaging and treatment of the underlying brain cause (stroke, MS, tumour).
The wrong approach — long-term vestibular sedatives for undiagnosed vertigo — actually slows recovery and is one of the commonest mistakes we correct.
Vertigo and Diabetes — The Connection
Because so many of our patients at Gini have diabetes, this connection matters. Long-standing or poorly controlled diabetes can affect the balance system in several ways: diabetic neuropathy impairs the position sensors in the feet and legs that help keep you steady; vascular disease reduces blood supply to the inner ear and brainstem, raising the risk of central vertigo and stroke; and fluctuating blood sugar itself causes light-headedness that patients often mislabel as vertigo.
This is exactly why Gini's model — neurology working alongside Dr. Bhansali's endocrinology team — is valuable. A dizzy diabetic patient benefits from a neurologist who also thinks about glucose control, blood pressure and vascular risk, not just the ears.