Last August I was in the hospital for about a week because i had a horibble stomach ache and I had blood in my diarrhea.  I ended up getting better by the end of the week.   About a month later, I started having stomach aches and progessively have gotten worse through the year.  I have blood in my stool at least once a week.  Every week or so, I will get a stomach ache that is so unbarable that i scream.  I just saw a GI doctor and i had a colonoscopy and they said my colon is swollen, but they could not find out what was wrong.  They tested for pretty much everything.   Does anyone have any suggestions???