Anxiety and irritability
A fine tremor of your hands or fingers
Heat sensitivity and an increase in perspiration or warm, moist skin
Weight loss, despite normal eating habits
Enlargement of your thyroid gland (goiter)
Change in menstrual cycles
Erectile dysfunction or reduced libido
Frequent bowel movements
Bulging eyes (Graves' ophthalmopathy)
Fatigue
Thick, red skin usually on the shins or tops of the feet (Graves' dermopathy)
Rapid or irregular heartbeat (palpitations)