Re: at least 20 times a day
There are several hyperthyroid conditions, such as Graves Disease that can cause massive amounts of diarrhea.
Here is some information that is posted on the Thyroid Healthboards:
Common symptoms and signs of hyperthyroidism.
Increased Bowel Movements
Light or Absent Menstraul Periods
Fast heart rate
warm moist skin
enlarged thyroid gland
CLASSIFICATION OF HYPERTHYROIDISM
The most common underlying cause of hyperthyroidism is Grave's disease, a condition named for an Irish doctor who first described the condition. Graves' disease affects women much more often than men. This condition is sometimes called diffuse toxic goiter, because the entire thyroid gland is enlarged. Although it can occure at any age, it most commonly affects younger people. Graves's disease in an autoimmune disease, a condition cause by the patient's own thyroid gland. Hyperthyroidism is caused by antibodies directed against the thyroid gland. There are actually three distinct parts of Graves' disease: overactivity of the thyroid gland(hyperthyroidism), inflammation of the tissues around the eyes(ophthalmopathy, orbitopathy), and thickening of the skin over the lower legs(pretibial myxedema). Graves' disease tends to run in families, but no one yet understands precisely what triggers the onset of the condition.
Hope this helps. This might not be your problem, but it couldn't hurt to check it out, just in case.