Martin77 it has been interesting reading your journey. I was diagnosed with anal cancer in April of this year 2022. My treatment was very different from yours. I didn't have surgery but had 6 weeks of radiation and 2 weeks of chemo while doing the radiation. For the chemo I was hooked up on a Monday and wore a pump for 4 days during the first and last week of radiation.
Radiation was bad, I hope you don't have to go through that. Treatment went well and it looks like the cancer is gone but now I'm having side effects from the treatments. The chemo caused a blood clot and now the blood thinners are causing some very unexpected bleeding. Its been hard to stay positive as I just wish I could put this all behind me. Keep posting about your journey, it helps to know I'm not the only one on this path right now.