Hi. Thanks for your query. Noted the history and understood your concerns. Pain in abdomen in a 6 year old girl waking up her in the middle of night with vomiting and getting diarrhea sometimes indicate one of the following: Since there is no relation with a certain food or so the most probable cause can be an inflammatory lesion wither in the intestinal tract like appendicitis or enteritis or in the abdomen like inflamed nods or worms. This can be diagnosed by the following: Test of stool and blood. Ultrasonography of the abdomen. Following treatment can be done: Treatment for the worms. A course of an antibiotic, metronidazole and probiotics. Specific treatment as per the cause found on investigations and clinical evaluation by a Pediatric Surgeon preferably.