Apart From High Fibre Diet, Hot To Treat Very Frequent Diarrhea Like BM Daily After Colon Removal?

I had my colon removed two and a half years ago. My rectum is intact so i don't have a bag. Since surgery I have had about 13 bms per day. Tried every medication recommended, and now take tincture of opium four times daily but it doesn't help very much. Bowel movements are usually diarrhea but very occasional they are long worm shaped. Have tried Sandostatin injections but didn't work. Was recently in hospital because my new refill of opium did not work and I had severe withdrawal symptoms. Now back on opium that is working a little. I also had c.diff when in hospital and was on antibiotics. Seem to be clear of that but my Oncologist told me that it could recur. Some people on the website recommend high fibre diet but I think that increases gas which seems to be a very big problem for me, and adds to the urge to have a bowel movement. Any help is greatly appreciated. I am a female, aged 72. My 3 sisters all died of colon cancer or related issues, so perhaps I am fortunate to be in the U.S. and not England, where the medical care and preventive measures are superior to the NHS.