My sister is receiving radiation twice a day everyday for 6 and a half weeks for cancer of the tonsils. She has completed 2 weeks and is already so dibilitated by this. She can hardly eat (she is scared of getting a feeding tube) and she is nauseous, cannot talk and just has no energy. She is fair headed and a radiologist told her that fair headed folks tend to have a harder time with the treatment. Is this normal to be so sick so soon into the treatment, and how will she be in 4 more weeks of this?