<s>[INST] Hi, my daughter is 5 yrs old, about 38 lbs and average to tall in height for her age. She is an active happy little girl who seems perfectly healthy but she complains about her tummy hurting all the time. Its always right after she eats and sometimes in the morning before she eats. She is completely fine all other moments so it doesnt slow her down or anything. But she mentions it enough for me to be concerned. Im starting to worry that she may have something wrong with her stomach or even a possibly food allergy. My sister has celiac disease so thats a concern for me that she may have it as well. [/INST] Hi. Thanks for your query. Read the history about your daughter and understood it. The most probable cause of pain in a child of 5, which increases after food and in the morning before she eats are :-Tummy tonsils-meaning enlargement of the lymph nodes of the abdomen.-Appendicitis- by default this has to be ruled out in every case of pain in -abdomen of a child.-Worms. The best diagnosis is a high resolution ultrasonography. Some blood, urine and stool tests. A therapeutic trial with a course of an antibiotic, metronidazole and probiotics under the guidance of a pediatrician / Surgeon always helps to solve the problem and to get a diagnosis. Also given is a dose of medicines active against worms in intestine. I hope a consultation with a Pediatric Surgeon, investigations and a course of an antibiotic and metronidazole should solve the problem. If this is indicative of appendicitis, please go for the surgery of appendectomy. </s>