Hello, sorry you have had to join our club. There are many posters here with very similar/same diagnosis.
Your treatment plan sounds like the standard one. HPV positive cancers respond much better to chemo and radiation so the prognosis is better. So you are already on a better footing.
It's good that you will have the PEG inserted prior to beginning treatment. Most people lose a good amount of weight while undergoing treatment. Your main job until you begin treatment is to eat as much as you can and gain weight.
I just want you to know that this treatment is very doable. The going can get rough at times but you will be ok. I hope you have a support person to be your advocate and cheer leader - you will need one.
Others will chime in soon and give you great advice.
You will get through this. I think the waiting for treatment to begin is the hardest. Once you start you know and feel like you are making progress at ridding yourself of this disease.
It can be a hard journey but you too will get through it. Come here often for help and advice with any hurdles. I think members here have experience with anything and everything that happens along the way and after.
Thinking of you,,
Tammy