Hyperthyroidism and perimenopause

Both can be associated with sweating, sleep difficulty, anxiety, palpitations and changes in menstrual patterns. Hyperthyroidism may also cause heat intolerance, diarrhoea, tremor, weight change or a persistently fast heartbeat. Perimenopause reflects changing ovarian hormone patterns, but these overlapping symptoms should not be assigned to it without considering thyroid disease.

A clinician will review your cycle, symptom pattern, medicines and medical history, then examine you and may request thyroid blood tests. The timing, combination and persistence of symptoms help guide interpretation.

Book an appointment for symptoms that are new, worsening or interfering with daily life. Keep a brief diary of bleeding, sleep, temperature sensitivity, bowel changes, palpitations and anxiety. Bring a list of medicines, supplements and hormone treatments.

Use breathable clothing, regular fluids and a calm bedtime routine for comfort while awaiting assessment. Do not start thyroid medicine or alter hormone treatment without advice. Treatment depends on whether symptoms arise from thyroid overactivity, perimenopause, or both.

Get urgent help for chest pain, fainting, severe breathlessness, new confusion, or a very fast or irregular heartbeat. Seek prompt assessment for unusually heavy bleeding, bleeding after sex, or symptoms that leave you dizzy or markedly weak.

Ask which thyroid tests are suitable, whether your cycle pattern fits perimenopause, how medicines may affect symptoms, and which changes should prompt earlier review.