Hi, I had cushinings disease, i had a pituatary tumor removed in 2007, ive been steriod dependent sicne then, i also have hashimottos disease and take synthroid. My old endo has had me on 20mg of cortozone since surgery and i take 75mc of synthroid, i was doing well the last two years then all of a sudden i gained 18pds in 3 weeks, I went to cleveland clinic this past week for second opinion, ny endo there wanted to decrease my cortosol by 5mg a day so they could do an accurate test for cushings, day 1 and i feel horrible and am scared of an adrenal crisis, what are your thoughts and would it happen just ater two days? im very tired, nauseated, no appetite.and feel a little dizzy.