<s>[INST] Recently I have been having a lot of discomfort after eating in my upper middle abdomen.  I have also been having bouts of crayola crayon green diarrhea pretty often now.  I have a history of IBS but never anything like this before.  Should I be concerned? [/INST] Hi. Thanks for your query. Read the history and understood the problems. History of Crayola Crayon green stools is indicative of an active and atypical infection as usually seen in infants. This is casing you the pain in the upper middle abdomen along with Gastritis. Anyways, the known history of IBS complicates the problem more. I would advise you the following :First of all the tests before the antibiotics are started to get the correct results.- Stool: culture and sensitivity; routine and microscopy, occult blood.- Blood : CBC, Sugar, thyroid, liver and kidney functions - Urine test -Ultrasonography-Colonoscopy. Your Doctor will start a course of an antibiotic which is active against the bacteria that produce green stools; metronidazole, probiotic are a must to restore the gastric flora, symptomatic and supportive. I am sure this is going to help you a lot. Once the Problems come under control, go for further tests if required. Continue probiotic for a long tine. Have control over stress and anxiety </s>