I had similar experience as Mark. I did not have PEG tube and I loast 45 lbs during the treatment(20lbs from surgery, 25lbs from radiaitn). I had surgey to remove the tumor before the radiation and concurrent weekly chemo. The reason I did not have PEG tube was because I was afraid that the chemo had suppressed my immune (sp ?) system making me easily get infected.

I did have hard time to eat during the last few weeks of the treatment, the doctor prescribed medicine to numb my throat so that I could eat my meal.