Dizziness
Dizziness can be harmless or a warning sign — the difference matters.
Dizziness is a blanket term for feeling off-balance, lightheaded, or as if the room is spinning (vertigo). Most episodes are benign — dehydration, low blood pressure on standing, inner-ear issues — but sudden, severe, or recurring dizziness needs a doctor.
When to worry
Seek urgent medical care for any of the following:
- Sudden severe dizziness with weakness, slurred speech, or facial droop (stroke signs)
- Fainting or loss of consciousness
- Chest pain, palpitations, or shortness of breath
- New hearing loss in one ear
- Dizziness that lasts more than a few days
- Head injury before the dizziness started
Safe self-care
Reasonable first steps while you wait for or decide on a consultation:
- Sit or lie down immediately when dizzy — don't try to walk it off
- Sip water; dehydration is a very common cause
- Stand up slowly, especially from bed or a hot shower
- Avoid driving until the episode fully resolves
- Note triggers (head movement, standing, meals) to share with the doctor
Dizziness — FAQ
What's the difference between dizziness and vertigo?
Dizziness is a general off-balance feeling. Vertigo is a specific sensation that the room is spinning, and usually points to an inner-ear cause.
Can low blood sugar make me dizzy?
Yes. Skipped meals, intense exercise, or diabetes medication can drop glucose enough to cause dizziness, sweating, and shakiness.
Should I see a doctor for occasional lightheadedness on standing?
If it's brief and resolves in seconds, it's usually benign. If it's frequent, worsening, or you nearly faint, have it checked.
Other symptoms
This page is general information, not medical advice for any specific person. If in doubt, book a consultation or seek emergency care.