Signs and symptoms of hyperthyroidism

When the thyroid releases more hormone than the body needs, body processes can speed up. People with hyperthyroidism may feel unusually warm, sweat more, lose weight without intending to, or notice trembling and muscle weakness. Palpitations, nervousness, irritability, difficulty sleeping, and more frequent bowel movements may occur together or separately.

Symptoms can overlap with stress, medication effects, infection, and other conditions. A clinician usually considers the pattern, examines the neck and pulse, and arranges thyroid blood tests. A symptom such as night sweats alone does not establish a thyroid disorder.

Book a GP appointment if several of these changes persist, especially palpitations with heat intolerance, tremor, or unexplained weight loss. Bring a list of medicines and supplements, including products containing thyroid hormone or stimulants. Record when symptoms occur, your resting pulse if you can measure it safely, and any changes in bowel habits or sleep. Do not start or stop thyroid treatment without clinical advice.

Get urgent help for chest pain, severe breathlessness, fainting, new confusion, or a very rapid or irregular heartbeat with weakness. High fever, agitation, or a sudden major worsening in someone known to have hyperthyroidism also requires emergency assessment.

Could my symptoms be related to thyroid hormone levels? Which blood tests are appropriate? Could any medicine or supplement be contributing? How should I respond if palpitations become stronger, and when should I seek urgent help?