My husband had a prostatectomy 6 years ago, the cancer has returned, He did have a PSMA scan, and it does not appear to have spread to bones. They are setting up schedule for 7 weeks of radiation, 35 sessions total. He has to do a colonscopy first as he’s having some issues ( if the cancer had spread there, wouldn’t it have shown up on the PMSA?). My question is what kind of side effects will he feel? How long after the 7 weeks before he regains strength and energy? What can I do to help ?