I had cancer over a year ago and I can't gain a pound? It was tonsil cancer. I'm free of it now, but I lost weight while going through treatment. I fed myself through a tube. Afted treatment I had to have it removed right away due to an infection in my stomach by the bubble inside of course connected to the tube. I feel sick a lot ever since. I eat but not a lot so I started eating a lot of little meals. I'm just worried because I've gotten real weak. What should I do? I'm seeing my Doctor at the end of the month.