Vertigo feels like the room is spinning around you, or like you’re spinning inside a still room. It’s distinct from general dizziness or lightheadedness, and that difference is the key to recognizing it. About 15% to 20% of adults experience dizziness or vertigo in a given year, so if you’re dealing with it, you’re far from alone.
Vertigo vs. General Dizziness
The most important distinction is the sensation of movement. General dizziness is a feeling of being off-balance, woozy, or lightheaded, like you might fall over if you don’t sit down. Vertigo is specifically the illusion that either you or your surroundings are moving when nothing is actually moving. Most people describe it as spinning, but it can also feel like tilting, swaying, or being pulled to one side.
If you close your eyes and still feel like the world is rotating, that’s vertigo. If you feel faint, unsteady, or foggy but without any spinning sensation, that’s more likely general dizziness, which has different causes like low blood pressure, dehydration, or blood sugar drops.
What Triggers an Episode
Paying attention to what sets off your symptoms is one of the most useful things you can do, both for figuring out whether you have vertigo and for helping a doctor identify the cause. The two biggest clues are timing (how long episodes last) and triggers (what you were doing when it started).
The most common cause of vertigo is a condition called BPPV, where tiny calcium crystals in your inner ear drift into the wrong canal and send false motion signals to your brain. BPPV episodes are brief, typically less than a minute, and are triggered by specific head movements: tipping your head back, rolling over in bed, lying down, or sitting up. If your spinning episodes are short and reliably happen when you change head position, BPPV is the most likely explanation.
Inner ear infections or inflammation can cause vertigo that comes on suddenly and severely, then gradually improves. The initial phase lasts up to a few days with intense, constant spinning, nausea, and difficulty standing. Most people recover within a few weeks, though some have lingering unsteadiness for months. This type often follows a cold or viral illness.
Ménière’s disease produces episodes that last much longer, anywhere from 20 minutes to 12 hours or even up to 24 hours. The hallmark is vertigo combined with hearing loss, ringing in the ear, and a feeling of fullness or pressure in one ear. If your vertigo comes with these ear symptoms, that combination is what doctors look for when considering this diagnosis.
Symptoms That Accompany Vertigo
Vertigo rarely shows up alone. Because your balance system, vision, and stomach are closely connected, spinning episodes commonly bring along nausea and vomiting, especially during severe bouts. You may also notice involuntary eye movements during an episode. Your eyes may jerk rhythmically to one side without you controlling them. This is called nystagmus, and it’s actually one of the most reliable signs that what you’re experiencing is true vertigo rather than another type of dizziness.
Other common companions include difficulty walking or standing, a pulling sensation toward one side, sweating, and anxiety. Some people find that the nausea and unsteadiness persist even after the spinning stops, particularly with inner ear infections where the recovery stretches over weeks.
How Doctors Confirm It
There’s no blood test or scan that definitively diagnoses most types of vertigo. Instead, doctors rely heavily on physical examination and your description of what happens during episodes.
The most well-known test is the Dix-Hallpike maneuver, used to diagnose BPPV. You sit on an exam table, and a provider turns your head 45 degrees to one side, then quickly guides you to lie back so your head hangs slightly off the edge with one ear pointing toward the floor. They watch your eyes closely throughout. If the displaced crystals shift during this movement, your eyes will move involuntarily. That involuntary eye movement is a positive result, confirming BPPV. If nothing happens, they repeat the test on the other side or try a different positioning test.
For suspected inner ear infections or Ménière’s disease, doctors may use hearing tests, balance assessments, or imaging to rule out other causes. One balance test involves marching in place with your eyes closed for 50 steps. Rotating more than 30 degrees from your starting position or drifting more than half a meter to one side suggests an imbalance in your inner ear’s signaling.
Warning Signs That Need Urgent Attention
Most vertigo comes from inner ear problems and, while miserable, is not dangerous. But vertigo can occasionally signal something more serious, including a stroke affecting the back of the brain. This is more common than many people realize. Isolated vertigo is actually the most common warning symptom before a stroke in the vessels supplying the back of the brain, and it’s rarely identified correctly at the first medical visit.
What makes this tricky is that strokes causing vertigo often don’t produce the classic stroke signs people know to look for. Fewer than 20% of stroke patients who present with vertigo have obvious neurological signs like facial drooping or arm weakness, and standard stroke screening scales can come back completely normal even when a stroke is occurring.
Seek emergency care if your vertigo comes with any of the following: sudden severe headache or neck pain, double vision, difficulty speaking or swallowing, numbness or weakness on one side of your body, or inability to walk. Also take it seriously if vertigo is new, severe, and constant (lasting hours without letting up), especially if you have vascular risk factors like high blood pressure, diabetes, or a history of smoking. Young adults aren’t immune either. Tears in the arteries supplying the brain can mimic migraine closely, and younger stroke patients are significantly more likely to be misdiagnosed than older ones.
Tracking Your Episodes
If you suspect you have vertigo but aren’t sure, keeping a simple log of your episodes can help you and your doctor figure out what’s going on. For each episode, note what you were doing when it started, how long the spinning lasted, which direction the room seemed to spin, and any other symptoms like ear pressure, hearing changes, nausea, or headache.
The pattern often points directly to the cause. Brief episodes triggered by head position suggest BPPV. Long episodes with ear symptoms suggest Ménière’s disease. A single prolonged episode after a viral illness suggests inner ear inflammation. Vertigo with headache, light sensitivity, and no hearing changes may point to vestibular migraine. Bringing this information to an appointment gives your doctor a much clearer starting point than a general description of “feeling dizzy.”