My 17 year old daughter had her gallbladder out in December of 2007 and has had stomach pain and chronic diarrhea since. A month after her surgery she had a colonoscopy to no prevail.The pain was so severe this December i took her to the doctor that afternoon and he ordered a CAT scan of her abdomen, they found swollen lymph nodes but gave no answers as to why. My mom died of colon cancer and I'm scared it could be that. Do you have any ideas as to why she would have such pain and swollen lymph nodes?