It takes ages and ages for the bowels to settle down after RT. At least 18 months in my case. Bladder irritation calmed down within a month of RT finishing, but bowel issues take far longer. I didn't have bleeding, but I was passing lots of green mucus and having the occasion "mishap" when what I though was just wind turned out not to be. I also had bouts of proctitis - an intense burning sensation inside the back passage which came and went. All these symptoms gradually subsided in frequency and then died out entirely. Now, three and half years after RT, things are pretty much normal but my bowel frequency is significantly greater than before treatment.
Cheers,
Chris