What should you know about caffeine dizziness?

Caffeine stimulates the nervous system. In a sensitive person, a strong drink or several caffeinated products can bring shakiness, anxiety, a faster heartbeat or a faint feeling. Caffeine may also disturb sleep, and tiredness can make balance symptoms harder to ignore. Dizziness after caffeine does not identify one particular condition.

Other explanations include dehydration, heat exhaustion, low blood sugar, anaemia or iron deficiency anaemia. Spinning brought on by turning in bed can fit benign paroxysmal positional vertigo instead. Repeated episodes deserve an assessment rather than a self-diagnosis.

Sit or lie down when the feeling starts, move slowly, and avoid driving until you feel steady. Drink water and eat a regular snack if you have missed a meal. Record the drink, amount, timing, food, sleep and symptoms. Consider reducing caffeine gradually, particularly if stopping suddenly gives you headaches. Check labels for coffee, tea, cola, energy drinks and some medicines.

Get urgent help for fainting, chest pain, severe breathlessness, new weakness, trouble speaking, confusion or a severe new headache. Arrange a medical review if dizziness keeps returning, starts with a racing or irregular heartbeat, follows a new medicine, or affects walking. A clinician may check blood pressure, hydration, blood sugar, blood count and heart rhythm.

Could my symptoms be related to caffeine, dehydration or a medicine? Do I need blood tests or a heart-rhythm check? What reduction plan suits my usual caffeine intake?