..and things continue to improve slowly. I'm doing much better than I was a month ago. My current regimen is Proctofoam 2-3 times daily. I avoid insoluble fiber as much as possible but take Benefiber (2 grams twice a day). Benefiber is pure soluble fiber. After each bowel movement I take 1/2 dose of Immodium. That prevents any diarrhea. In a week or so I'll try stopping Immodium altogether.
Bowel movements are now simply uncomfortable, whereas before they were very painful. And I'm not in any discomfort afterwards now, where before I would be uncomfortable for most of the day.
About 1 month until PSA time.