My daughter is 24 years old. She put on about 40 pounds in college, and decided to get healthy again. She started eating healthy about 8 months ago. She stopped eating red meat, and started eating salads and smaller portions during lunch and dinner. She started working out about 4 months ago with a personal trainer, 2 - 3 times as week. She started drinking Diet Coke about 8 months ago.....She does drink wine and martinis on the weekend and a night or two during the week. She is having shooting pains in her abdomen after she eats, almost everytime she eats. She has had diarrhea very often. She has gone to the doctor and they have done bloodwork on her to test all her organs? Dr. thought for sure it was her gall bladder, but it wasn t. ....Tooks viles of blood to test her organs ....also for gluten intolerance, anemia.....all negative....had a lower GI sonogram...nothing....next step....possibly to see a gastrointestinal doctor? Any ideas?