I had 28 sessions of proton radiation during April-May 2021.

Regarding difficulty peeing —> I only had 1 day of adverse side-effects during my 28 sessions of proton beam radiation treatments. On the 3rd day of treatment, I had similar urinary issues. My RO told me that with some men there’s an inflammatory response to the radiation, and if that inflammation is near the urethra can cause the issues that I was experiencing. He recommended that I take 2 Tamsulosin/day for the remainder of the treatments. Everything cleared up by the next day; I haven’t had that issue since. My “recovery” from radiation treatments was relatively uneventful.

As for the “fecal matter leakage”:
> did you practice the full bladder/empty bowel routine consistently?
> did you use a rectal spacer?

Though proton radiation is very precise and accurate, if they mess up and overshoot the prostate, you’ll experience what you’re going through.