Why do I feel Dizzy? 12 potential causes explained... (plus treatment)

12 Causes of Dizziness (And When It Needs Urgent Care) | Doctor Explains Feeling dizzy, lightheaded, or like the room is spinning? You’re not alone — dizziness is one of the most common reasons people seek medical advice. But while many causes are harmless, some can signal serious underlying conditions that need urgent attention. In this video, Dr O’Donovan (UK medical doctor) explains 12 common causes of dizziness, from simple and treatable issues like dehydration and low blood sugar, to more serious conditions involving the heart, brain, or circulation. You’ll learn: - What dizziness actually means (lightheadedness vs vertigo vs imbalance) - The most common causes of dizziness and how to recognise them - Inner ear conditions like BPPV, labyrinthitis, and Ménière’s disease - Circulatory causes such as anaemia and heart rhythm problems ⚠️ Warning signs that could indicate a stroke or medical emergency - When to seek urgent care — and when it’s likely something less serious ⏱️ Chapters 00:00 - Introduction 01:12 - What is dizziness? 02:05 - Dehydration 03:49 - Low blood sugar (hypoglycaemia) 04:54 - Postural hypotension 05:58 - Anxiety and panic 06:47 - Medication side effects 07:29 - BPPV (positional vertigo) 08:16 - Labyrinthitis & vestibular neuritis 08:53 - Ménière’s disease 09:26 - Anaemia 10:00 - Heart rhythm problems 10:32 - Stroke & urgent warning signs ⚠️ When to seek urgent medical help Call emergency services immediately if dizziness is associated with: Weakness on one side of the body Difficulty speaking or understanding speech Severe headache or double vision Chest pain or collapse New confusion or loss of consciousness 📌 Important disclaimer This video is for general educational purposes only and does not replace personalised medical advice. If you have ongoing, worsening, or concerning symptoms, please always consult your own GP or healthcare professional. Sources & further reading: NHS: Dizziness — https://www.nhs.uk/conditions/dizziness/ NHS: Vertigo — https://www.nhs.uk/conditions/vertigo/ Mayo Clinic: Dizziness — https://www.mayoclinic.org/symptoms/dizziness Cleveland Clinic: Dizziness — https://my.clevelandclinic.org/health/symptoms/15227-dizziness NICE Guidelines — https://www.nice.org.uk