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What to do if…
you develop sudden spinning dizziness and you have to lie down

Short answer

Lie flat somewhere safe and do a quick stroke check (FAST plus balance/vision). If you have any sudden stroke warning signs (face/arm weakness, speech trouble, new confusion, sudden vision loss/double vision, severe headache, or suddenly falling over/trouble walking), call 999 now.

Do not do these things

  • Do not try to “push through” or walk unaided (falls are common with spinning vertigo).
  • Do not drive yourself anywhere, including to A&E.
  • Do not drink alcohol or take extra sedating medicines to “knock it out”; only take medicines as directed/prescribed, and do not take someone else’s medication.
  • Do not go into a bath/shower alone or use stairs while it’s spinning.
  • Do not ignore dizziness with new one-sided weakness/numbness, slurred speech, new confusion, new vision loss/double vision, or a sudden severe headache.

What to do now

  1. Make the situation physically safe (right now).
    Lie flat (or slightly propped if that reduces nausea). Keep your head as still as you can. If you might vomit, roll onto your side (recovery position) and keep a bowl/bag nearby.
  2. Do a 30–60 second emergency screen (FAST + balance/vision).
    • Face: can you smile evenly?
    • Arms: can you lift both arms and keep them up?
    • Speech: is your speech clear?
      Also notice: sudden trouble walking/standing even with support, sudden clumsiness, new vision loss/double vision, new confusion, or a sudden severe headache.
  3. If any stroke warning sign is present, or you’re not sure, call 999.
    Say: “Sudden onset spinning dizziness/vertigo, started at [time], I had to lie down.” Do not attempt to travel yourself.
  4. If FAST is normal but it’s still severe or worrying, use NHS 111 urgently (phone or online) for same-day advice.
    This is especially important today if you have any of: being sick/feeling very sick, a severe headache, a high temperature/shivers, sudden hearing loss, double vision/vision loss, new numbness/weakness, or trouble speaking.
  5. If you’re alone, get another person involved.
    Call/text a neighbour, friend, or family member to sit with you, help you move safely, and stay in case you deteriorate.
  6. Write down 4 details for clinicians (phone notes is fine).
    • Exact start time (important).
    • What you were doing when it began (rolled in bed? stood up?).
    • Any ear symptoms (sudden hearing change, ringing, ear pain).
    • Any neurological symptoms (weakness, numbness, speech/vision problems).
  7. If you can swallow safely and you’re not actively vomiting: take small sips of water.
    If you’re actively vomiting or very drowsy, don’t force fluids—focus on safe positioning and getting urgent advice.

What can wait

  • You do not need to decide the “cause” right now (different conditions can feel identical at first).
  • You do not need to try online manoeuvres/exercises during a severe first episode.
  • You do not need to sort work messages, driving plans, or appointments until you’re assessed or clearly improving.

Important reassurance

Sudden spinning vertigo can feel terrifying, and needing to lie down is common. Many causes are treatable, but because stroke can sometimes present with sudden dizziness and imbalance, taking the “rule out stroke first” approach is a safe way to protect yourself.

Scope note

This is first-steps guidance to keep you safe and get the right level of urgent help. Diagnosis and longer-term management should be guided by a clinician.

Important note

This is general information, not a medical diagnosis. If symptoms are severe, new, worsening, or you have any stroke warning signs, seek urgent medical help immediately.

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