What should you know about person with hyperthyroidism?

Excess thyroid hormone can make body processes run faster. A person may notice palpitations, heat intolerance, excessive sweating, night sweats, feeling anxious, difficulty sleeping, tremor, frequent bowel movements or diarrhoea, and changes in weight or menstrual pattern. Symptoms vary, and another condition can cause the same symptom, so testing is needed to confirm the cause.

A clinician usually reviews symptoms, medicines, supplements, pulse, and thyroid findings. Blood tests can help assess thyroid hormone activity and guide treatment. Tell the clinician about heart disease, pregnancy, eye symptoms, and any thyroid medicine.

Take prescribed treatment exactly as directed and keep follow-up appointments so symptoms and thyroid levels can be reviewed. Limit triggers that worsen racing-heart sensations, such as excess caffeine, and stay hydrated in hot weather. Do not change or stop thyroid medicine without clinical advice. Note pulse sensations, sleep, bowel changes, sweating, and heat sensitivity between visits.

Arrange medical review for new or persistent symptoms, especially palpitations, unexplained weight change, tremor, or worsening sleep and anxiety. Seek emergency help for chest pain, severe breathlessness, fainting, severe confusion, or a very fast or irregular heartbeat with marked weakness or fever.

Which tests will confirm the thyroid problem and its cause? How should I take my treatment, and which side effects need prompt advice? When should my thyroid levels and heart symptoms be reviewed?