Hyperthyroidism has many symptoms that can vary from person to person. Some common symptoms of hyperthyroidism are - nervousness or irritability - fatigue or muscle weakness - heat intolerance - trouble sleeping - hand tremors - rapid and irregular heartbeat - frequent bowel movements or diarrhea - weight loss - mood swings - goiter, which is an enlarged thyroid that may cause the neck to look swollen and can interfere with normal breathing and swallowing
What are the symptoms of Hyperthyroidism ?