My husband had HPV Positive throat cancer that was diagnosed in Dec of 2023. He went for treatment at Mayo in first quarter 2024. He had the treatment you are describing
6 chemo/35 proton radiation. Are you getting proton radiation? It is more targeted and better suited for the throat area. His tumor was also in his tonsil area and had been growing for well over a year before diagnosed. He is doing very well despite some side effects that have developed. He did not need a feeding tube. Pain meds were needed during treatment. If you are going to Mayo you are in fantastic hands.
There is more to his story and I will save details unless you want them but hang in there! And also drink your high calorie boost as much as you can if they recommend it once you start treatment to avoid feeding tube. Also we did use ice packs on feet and hands during chemo to avoid side effects in those areas. Read up on that - just google it and buy them on Amazon

Best of luck! Stay positive and get counseling for your fears which Mayo also makes available. Sending a hug