OK, so this is where I think it started:

2 weeks ago this day I ate some really low quality chili that I couldn't even finish. After that I noticed I wouldn't have to go to the bathroom for no less than 3 days in between (at one point a 4 day wait!) and I really have to try. When I do go, the stools are hard and dark and come out few and far between (a bit like sheep dropping?). I do get the urgent feeling to go to the toilet but it's just difficult.

But by the end of the week nothing had changed so I thought it must be because I wasn't eating enough fibre so I stocked up on green veg and wholemeal bread. That didn't change anything. I should probably mention that earlier this summer I had to stay in hospital for a few days because the doctors said I had an irritated intestine, and I couldn't go to the toilet for a whole week. It was very painful, like something between a cramp and a stitch. I'd had that feeling before but it was normally resolved by flatulence, but this time it was a lot worse. No one knew what caused it, but one theory is the frozen fried junk food I had the night before it hurt after a long period with few veg, another is the dried cooked mushrooms I'd had a couple of days earlier. I did continue eating mushrooms after that, but not the same kind. I don't know if all this could be related.

Anyway I drink a lot of green tea as I've always done, and the only change I've made to my diet recently is porridge. Could that be it? I've also started cutting out meat in my diet because I've had a lot of that lately. However I have noticed recently that I've been going to the toilet a lot more frequently, and it's become slightly easier. Does this mean I'm getting better and should just not go to the Dr? Or should I go anyway?

Every now and then I get a pang in my belly or chest, like a stitch. I also noticed I've been flatulating more than usual since this started. And I'm 19. Please help! I'm afraid I might have a worm or diabetes or something!