“Dizziness” describes several quite different sensations, and telling them apart is most of the diagnosis.
Medically reviewed by Anuj Kumar Mishra, MPT
Last reviewed: 2 August 2026 · Our clinical team
Seek urgent medical care if dizziness comes on suddenly and severely, or with weakness, numbness, difficulty speaking, vision loss, sudden hearing loss, a severe headache, chest pain or fainting. These can indicate a stroke or another serious cause and need assessment immediately — not a physiotherapy appointment.
First, which sensation is it?
- Vertigo — a false sense of spinning or movement. Points toward the inner ear or its connections.
- Light-headedness — feeling faint or about to pass out. Points more toward blood pressure, heart rhythm, dehydration or medication.
- Unsteadiness — feeling off-balance on your feet without spinning. Points toward balance, sensation, vision or neurological causes.
Common causes by pattern
| Pattern | Often suggests |
|---|---|
| Brief spinning triggered by head position, seconds long | BPPV |
| Sudden severe vertigo lasting days, often after a viral illness | Vestibular neuritis or labyrinthitis |
| Vertigo with hearing loss or ringing in one ear | Inner-ear conditions needing medical assessment |
| Light-headedness on standing up | Blood-pressure drop, dehydration, medication effects |
| Dizziness with headache, often with visual disturbance | Migraine-related dizziness |
| Persistent unsteadiness after a vestibular event | Incomplete compensation — responds well to vestibular rehabilitation |
| Unsteadiness with numbness or weakness | Needs neurological assessment |
Medication is a common and overlooked cause
Blood pressure medicines, sedatives, some antidepressants and several other drugs can cause dizziness, particularly in combination. If dizziness began after a medication change, tell your doctor — do not stop the medication yourself.
What to note before your appointment
- What exactly it feels like — spinning, faint, or unsteady
- How long each episode lasts
- What triggers it
- Any hearing change, headache or neurological symptoms
- Recent medication changes
This history frequently identifies the cause before any test.
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Medical disclaimer: this article is general information and is not medical advice, diagnosis or treatment. It is not a substitute for individual assessment. See our medical disclaimer.