rick

As others have posted, getting your lymph nodes out in a neck dissection may not be needed. I was very relieved when I did not need one the first time around. Staying hydrated wasn't a problem for me even though I struggled with the Ensure Plus and like David, I was a real alpha Male and did the whole thing without a PEG, so you may make it. I did lose over 20% of weight however and had to cheat on the weigh ins. However in retrospect, it would have been easier if I had had the PEG.
Your return to exercise schedule sounds doable. I was back lifting weights and doing Pilates and Yoga in two months after TX. within a year, stronger and better than ever. Especially without surgery, you will do just fine. Finally, my doctors were okay with a beer a day and it really felt good going down my throat plus added needed calories. Even now, I do a glass of wine a day in my PEG. Good luck
Charm