What Causes Dizziness and How to Treat It

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Whether you experience a quick spin, a wave of lightheadedness, or a sudden wobble, a dizzy spell can stop you in your tracks.

Dizziness is one of the most common reasons people visit their doctor. Many times, the cause is something simple you can manage at home. But sometimes, feeling dizzy may signal something more serious that requires medical attention right away.

Here’s what your body could be telling you through dizziness.

What Does Feeling Dizzy Mean?

People use the word “dizzy” to describe several sensations. But knowing the different terms medical professionals use can help you better describe exactly what you’re feeling:

• Dizziness — A disturbed sense of where you are in space, without a clear feeling of motion. This term is commonly used when people can’t quite describe what they’re feeling.
• Imbalance — A feeling of being unsure, wobbly, or off-balance while you’re sitting, standing, or walking.
• Motion sensitivity/intolerance — Feeling dizzy, nauseous, or uncomfortable with movement, such as riding in a car or scrolling on a screen.
• Oscillopsia — When it feels like the world is bouncing, jumping, or moving when it shouldn’t be.
• Presyncope — Feeling like you’re about to pass out.
• Vertigo — A false sense of spinning, rocking, or swaying when no motion is happening.

Why Am I Dizzy?

Your brain relies on three main systems to keep you upright and steady:

• Body sensors (joints, muscles, skin) — Tell your brain where your body is in space.
• Vestibular system (inner ear) — Senses head movement and position.
• Vision — Helps you see where you are and what’s around you.

Your inner ear does a lot of the heavy lifting. Tiny structures there detect movement and send steady signals to your brain. That’s how you keep your eyes focused and your body upright.

When any part of this system sends confusing or mismatched information, you may feel dizzy, off-balance, or like the room is spinning. Symptoms like nausea, vomiting, brain fog, and fatigue often accompany dizziness.

Common Causes of Dizziness

According to the Vestibular Disorders Association, dizziness accounts for about 5% of primary care visits each year.

Dizziness has many possible causes — some are mild and short-lived, but others need medical care.

Dehydration and low blood pressure

If you don’t drink enough fluids, your blood volume drops. That means less blood and oxygen reach your brain. You may feel lightheaded, especially when you stand up quickly or are sick with vomiting or diarrhea.

Low blood sugar

Skipping meals or going too long without eating can cause your blood sugar to fall. You may feel shaky, weak, sweaty, or dizzy.

Inner ear (vestibular) problems

Many dizzy spells come from the vestibular system in your inner ear. Common vestibular causes include:

• Benign paroxysmal positional vertigo (BPPV) — When tiny crystals in your inner ear move into the wrong place. BPPV causes brief, intense vertigo when you turn your head or roll over in bed.
• Labyrinthitis — Inflammation of both the balance and hearing parts of the inner ear can cause vertigo plus hearing changes.
• Ménière’s disease — A chronic inner ear disorder that causes episodes of vertigo, hearing loss, ringing in the ear (tinnitus), and a feeling of fullness in one ear.
• Vestibular migraine — A type of migraine that causes vertigo, dizziness, or balance problems, with or without a headache.
• Vestibular neuritis — Inflammation of the vestibular nerve, usually from a virus, that can cause sudden, severe vertigo. It’s often with nausea and trouble walking, but usually without hearing loss.

Medications

Many drugs list dizziness as a side effect. These include:

• Blood pressure medicines.
• Certain anti-seizure drugs.
• Sedatives or sleep aids.
• Some antidepressants.

If dizziness starts after a new medication or dose change, your doctor may need to make adjustments.

Anxiety and stress

Anxiety can make your breathing pattern faster or shallower. This can lower carbon dioxide levels in your blood, making you feel lightheaded or dizzy.

Illness, infection, and allergies

Colds, flu, sinus infections, and allergies can affect your ears and balance. You may feel dizzy, especially when you move your head.

Low iron (anemia)

Iron helps your blood carry oxygen. When your iron levels are low, you may feel tired, weak, short of breath, and dizzy.

Alcohol, tobacco, and substances

Alcohol and some drugs can affect your inner ear and brain. They can slow your reflexes, change your blood pressure, and make you feel dizzy or off-balance.

Dizziness when you stand up

Orthostatic hypotension is a sudden drop in blood pressure when you stand up. It’s common in older adults and people taking certain medications.

It often happens because blood pools in your legs for a moment before your body adjusts. If your blood pressure doesn’t rise quickly enough, your brain gets less blood, and you feel lightheaded. You can reduce these episodes by:

• Avoiding long periods of standing, especially in the heat.
• Drinking enough fluids.
• Holding onto a stable surface.
• Sitting up slowly before standing.
• Wearing compression stockings if your doctor suggests them.

When to See a Doctor for Dizziness

You should contact your doctor if dizziness keeps coming back, interferes with your daily activities, or lasts more than a few days. But you should also call your provider if:

• You have trouble hearing or changes in vision.
• You’re falling frequently or having near-falls.
• You’ve lost weight without trying.
• You’ve recently started a new medication.

Pay attention to what your dizziness feels like, when it happens, and what seems to trigger it. Bring these details with you when you see your health care provider.

What your doctor may ask

To understand what your dizziness feels like and what might be causing it, your doctor may ask about:

• Sensation — Whether it feels like spinning, faintness, or being off‑balance.
• Symptoms — Headache, hearing changes, ringing in the ears, chest pain, weakness, or anything else you’ve noticed.
• Timing — When the dizziness started and how long each episode lasts.
• Triggers — When you get dizzy, such as after standing up, turning your head, other movements, loud sounds, or stress.

What your doctor may check

Your doctor will also do an exam, which may include:

• Checking your blood pressure while lying down and standing.
• Looking at your eyes and ears.
• Watching how you walk and balance.
• Moving your head or body in specific ways to see if vertigo appears, such as the Dix‑Hallpike test for BPPV.

Tests you may need

Depending on your symptoms, your doctor may order a few tests to better understand what’s causing your dizziness. These may include:

• Blood tests — To check iron levels, blood sugar, and other markers that can affect balance.
• Heart tests — To look for rhythm changes that can cause lightheadedness.
• Imaging tests — If there’s a concern about a brain or blood vessel problem, you may have an MRI or CT scan.
• Vestibular tests — To see how your inner ear and eye movements work together and whether your dizziness relates to a vestibular disorder.

If your symptoms point to a more complex balance issue, your doctor may refer you to a specialist. Ear, nose, and throat (ENT) doctors, neurologists, and vestibular therapists can run more detailed tests and create a custom treatment plan.

How is dizziness treated?

Your care team will focus on what’s driving your symptoms. Depending on the diagnosis, your doctor may recommend:

• Canalith repositioning maneuvers — Such as the Epley maneuver for BPPV, which moves inner ear crystals back where they belong.
• Counseling or anxiety treatment — If anxiety is a major trigger.
• Medication changes — Adjusting or switching drugs that cause dizziness.
• Medications for vertigo or nausea — Used short-term to ease severe episodes.
• Migraine treatment — If vestibular migraine is the cause.
• Surgery or injections — In rare, severe cases of inner ear disease, such as some forms of Ménière’s disease.
• Treating underlying conditions — Managing blood pressure, blood sugar, anemia, infections, or allergies.
• Vestibular rehabilitation therapy — Special exercises that help your brain adapt to balance problems and reduce dizziness over time.

Recovery can take time. Some vestibular disorders improve over weeks or months. If you have a long-term issue, your doctor can help you manage symptoms so you can stay active and independent.

Living with Dizziness and Staying Safe

If you’re prone to dizziness, a few habits can help you feel steadier:

• Drink water throughout the day.
• Eat small, frequent meals to avoid blood sugar dips.
• Get enough sleep.
• Keep your home well-lit and free of clutter to reduce fall risks.
• Limit caffeine and alcohol, which can affect your inner ear and blood pressure.
• Manage stress with breathing exercises, movement, or relaxation techniques.

When Dizziness Might Be Serious

Most dizziness isn’t dangerous and passes quickly. But sometimes, it may be a sign of a stroke, heart attack, serious infection, or other emergency.

Call 911 or go to the emergency department right away if dizziness comes on suddenly and you also have:

• A drooping face.
• A stiff neck and fever.
• Chest pain or pressure.
• Confusion or difficulty understanding others.
• Double vision or trouble seeing.
• Fainting or passing out.
• Severe headache.
• Shortness of breath.
• Trouble speaking or slurred speech.
• Trouble walking or repeated falls.
• Weakness or numbness in your face, arm, or leg.