I should also add something else. I think most of my issues happen in the sigmoid colon, which at least is near the end of the colon. Certainly my entire colon is sluggish, due to the tortious nature of it. But it seems the ultimate issue is always down lower, and intestinal contents will move if the partial blockage near the end is relieved. Anyway, my internist happened to suggest using Fleet enemas to help this. Get on hands and knees to retain it as long as possible, hopefully causing it to travel up into the colon further than normal (at least past the rectal area). At least for me, it has solved many near nightmares (and pretty quickly, I might add). I keep them on hand, and always travel with them.

And I have an odd suggestion as well, based on experience, that might help someone. If you are female, vaginal sex would relieve a backup often. This can be done alone with props. For some reason it stimulates the colon which is right next to it. Not sure what would happen with back door sex (whether this be females or males), but its a thought.