Hyperthyroidism and vertigo: what should you know?

An overactive thyroid increases the body’s metabolic drive. Sweating, heat intolerance, anxiety, poor sleep and palpitations can leave you feeling weak, shaky or faint. That sensation is different from vertigo, which usually feels like you or the room is moving. Inner-ear problems, migraine, dehydration, medication effects and blood-pressure changes can also cause spinning sensations. A symptom such as palpitations can occur with hyperthyroidism, but it does not establish the cause of vertigo.

Sit or lie down when an episode begins, move your head slowly and avoid driving, heights or machinery until your balance is normal. Drink fluids if you can do so safely, and record when the episode started, how long it lasted, whether hearing or headache changed, and any thyroid symptoms. Arrange a clinical review for thyroid blood tests, a medication check and an examination of balance, ears and nerves. Do not change thyroid medicine without advice.

Seek emergency help for sudden severe vertigo with weakness on one side, facial drooping, trouble speaking, fainting, a new severe headache, chest pain, severe breathlessness or inability to walk. Prompt medical assessment is also sensible when vertigo keeps returning, follows a head injury, comes with new hearing loss, or occurs with a very fast or irregular heartbeat.

Could my thyroid levels or treatment be contributing to this sensation? Does the description sound like spinning vertigo or light-headedness? Which symptoms should prompt urgent help, and should my medicines, caffeine or other stimulants be reviewed?