I am 17 and have been having stomach pain for over two years. It first started with just stomach pain. The pain was like severe/sharp bursts which lasted a few minutes to an hour and occurred almost everyday. I went to a pediatric GI and had stool samples done and those came back fine. The pain lessened and I decided to put it off. In June of 2015 I started having more severe pain again, along with rectal pain, a lot of mucus in my stool, and back pain. I went to a PT for the back pain, which didn't help. I also went back to the same GI and he ordered a endoscopy and colonoscopy. The results were acid reflux (which I never had symptoms of, a bacterial overgrowth in the lower intestine). I was put on Omeprazole, Bentyl for two weeks, and a probiotic stronger than VSL3. Towards the end of the two weeks I was feeling better - no stomach pain, no mucus. During the last few days on the Bentyl, I started having the symptoms that I previously had, along with severe chest pains. I went off all prescriptions to see if that relieved any pain. I was prescribed Carafate to remedy the chest pain, but it didn't help. I am still having the same symptoms. The rectal pain is very severe and gives me chills. My parents and I are at a loss of what to do. We have already had a second opinion at Dartmouth, but the doctor had no suggestions.