what are the symptoms of hyperthyroidism
Other symptoms of hyperthyroidism include: 1  increased appetite. 2  nervousness. 3  restlessness. inability to concentrate. 4  weakness. irregular heartbeat.  difficulty 1  sleeping. fine, brittle  hair. 1  itching. hair  loss. nausea and 1  vomiting. breast development  in men.
Highlights. 1  Hyperthyroidism is a condition in which the thyroid overproduces hormones. 2  Common symptoms include weight loss, weakness, irregular heartbeat, and difficulty sleeping. 3  Gravesâ disease, the most common cause of hyperthyroidism, is more prevalent in women than in men.