I'm turning 20 next month. In april, I had one instance of blood in my stool, so I went to the gi doctor. Stools were pretty narrow, so I had a colonoscopy in june, which came back clean. My upper gi series went well also. In august, I tested positive for c. Difficile colitis. I went on flagyl to treat that, and I tested negatve for c. Difficile colitis after that. I also went on fiber supplements. I got off antibiotics around the beginning of september, and while I feel ive gotten better, I still have occasional abdominal pain and some narrow stools. I don't feel like i'm completely back to normal. I haven't noticed blood in my stool since that one incident, but my stools have been narrow from time to time since I was treated with flagyl, and I have had abdominal pain on and off. Could I have developed ibs? Like I said, i'm very confused. Any input is greatly appreciated...Thanks very much.