So sorry you've had so much trouble after a colonoscopy. Geez, I hate them too but need to go every couple years or so.
I quit smoking in 1986 & was chewing sugarless gum a lot. The sorbitol in it contributes to gas, bloating, cramping along with loose stools & urgency. After I quit the gum chewing I wondered if my troubles were lactose related. Nope, so I suffered for a few years & finally went for help.
After several tests including a barium enema & ending with a colonoscopy I got the diagnosis of UC. I was put on sulfasalazine at first along with folic acid. Later I became allergic to sulfa & now am on asacol (mesalamine) & it's working very well for me. There was another drug they gave me too, but for the life of me I can't remember the name of it. Senior moment I suspect! It's an anti-inflamatory & given to folks with asthma too.
Trouble after a colonoscopy should be reported to your dr asap. It should'nt be a problem. I hate the prep for the test, which is worse than going thru it even counting waking up during! I doubt polyps have anything to do with UC; some folks get them & some don't. At least during the test they can get them out while looking for signs of UC. Us UC folks are more at risk for colon cancer too, which is why we have to have regular testing done.
I'm glad you're doing better, OP, & hope you continue to recover. Hope the doctors finally can agree on what's wrong.