Leena: Welcome. Just to add my bit, as we had very similar cancers, I lost 50#, 25% of my body weight, during rad/chemo. I had the peg and if it wasn't for that, I would have shunk to nothing. The worst time is the 2-3 weeks after radiation. I worked through rad as an outside salesperson so I could not take pain meds until I got home. However, I could not even swallow what little saliva I had, let alone water or food, so if it wasn't for the peg I would have been a goner. You will begin to feel better soon. I am 3 1/2 months past rad and eat almost everything. Chips, soda, tomato juice, fish, steak, whatever, so hang in there it will pass.