Hey Perry, your situation, unfortunately, is all too common. You can get all the boxes checked off and still come up with a recurrence - I did too…
Mine took 5 yrs (Gleason 4+3 unfavorable) to recur; I did 25 tx IMRT with 6 mos ADT. Not bad at all. Diet, exercise and some SE’s were bothersome but totally do-able.
I just want to add to what chippy said about rectal spacer. I, too, wanted one but my RO said no because of the possibility of cancer cells near the rectum - he did not want the beams blocked by the spacer.
I know right now you are depressed and disgusted but please focus on the fact that this is your second chance to beat this. If you had radiation first (which many men have), you’d be facing a lot of ADT for a much longer time, possible doublet therapy, and risky salvage surgery as a last resort.
Also, be SURE to have your pelvic nodes irradiated as well - look up SPORTT trial for more info - not just the prostate bed.
Best,
Phil