As the West says & we are thankful to their tiresome research, Thyroid-stimulating hormone (also known as TSH) is a hormone that stimulates the thyroid gland to produce thyroxine (T4), and then triiodothyronine (T3) which stimulates the metabolism of almost every tissue in the body. If there is too much thyroid hormone (Hyperthyroidism ~ also known as Grave’s disease), TSH is low & every function of the body tends to speed up. Therefore, some of the symptoms of Hyperthyroidism are nervousness, irritability, increased perspiration, heart racing, hand tremors, anxiety, difficulty sleeping, thinning of the skin, fine brittle hair, and muscular weakness ~ especially in the upper arms and thighs. More frequent bowel movements may occur, but diarrhea is uncommon. Weight loss, sometimes significant, may occur despite a good appetite, vomiting may occur, and, for women, menstrual flow may lighten and menstrual periods may occur less often.
Hypothyroidism is a