I was fortunate that the proton radiation center was just a 40-minute drive (mostly highway) from my home. (I had 28 sessions of proton radiation + 6 months of Eligard.) I drove there and back each day.
I exercised every day - immediately after each radiation session, I would stop by the gym on the way home for 1-1/2 hours of weightlifting. Then, every other day I would also either jog a 5K or swim laps for 35-45 minutes. I never experienced fatigue; and I slept very well.
My treatments were always in the early afternoon; that consistency helped me to plan my day around treatments.
As for the bowel prep —> They told me that the rectum being “empty” didn’t mean it had to be clean; no need for an enema. What my radiation oncologist told me was what they really mean is nothing in the lower intestine, material or gas, that might move during the radiation treatment and cause the prostate to move. So, no gassy foods that might cause issues; so at the same time as I was emptying my bladder 45 minutes prior to treatment, I would also empty bowels. Worked every time.
The full bladder/empty bowel routine was easy to manage. In the weeks leading up to my radiation treatments, I practiced every day. By the time of my first treatment, I had the routine down to a ritual. It worked like clockwork every time and never caused an issue.
@brianjarvis
I do have another question, though. You said “so at the same time as I was emptying my bladder 45 minutes prior to treatment, I would also empty bowels.”
How did you manage to empty bowels at that specific time every day ??