Tim,
Welcome to OCF. Congrats on completing your treatment. You'll still suffer for some weeks but will improve. 2500 calories is a big task for sure. Fat has twice the caloric content than protein and carbs. If you make any shakes, try adding peanut butter and other fatty stuff.
Sorry to hear about the guff over
HPV. It is quite common to freeload in your body for decades, nearly everyone gets it but just a very small number get cancer from it. It can be transmitted by either sex.
Good luck, don