Here are main symptoms de l ‘hyperthyroidism. If the hyperthyroidism is mild, it may go unnoticed. In addition, in the elderly, the symptoms are often less pronounced.

• A rapid heart rate (which often exceeds 100 beats per minute at rest) and heart palpitations;
• Excessive sweating, and sometimes hot flashes;
• Fine hand tremors;
• Difficulty falling asleep;
• Mood swings;
• Nervousness;
• Frequent bowel movements;
• Muscle weakness;
• Shortness of breath;
• Weight loss despite a normal or even increased appetite;
• A change in the menstrual cycle;
• The appearance of a goiter at the base of the neck;
• Abnormal protrusion of the eyes out of their sockets (exophthalmos) and irritated or dry eyes, in Graves’ disease;
• Exceptionally, redness and swelling of the skin of the legs, in Graves’ disease.