My husband has lost 20lbs in last 90 days. 10 of those lbs lost in 1 week; that just passed. Has experienced night sweats, vomiting. Tires easily, very weak. Does not vomit every time he eats. His emesis is intermittent and without warning. Has appt. with internal medicine M.D. on Monday Dec. 7. Refuses to go to E.R.; states he is okay. He is 5' 10"; 60 years of age; and a life-long smoker. Worried!!!!!!