You're right. Should have said hypothyroidism, and is what I have. Chemo side effects can take a few days, and some longer with 5-FU, but that's a good sign so far. Christine gave sound advise with adequate nutrition and hydration, and sure the center spoke about impeccable oral care, and prophylaxis to help with oral infections and mucocitus which can occur with chemo, besides with radiation. Good luck over the weekend.