Hi there, Thank you for choosing HCM for your query. Will be glad to help. Firstly I would like to know several things before we can come to a definitive conclusion. 1. If he has had regular bowel movements. Does he remain constipated. 2. When was the last time he had a bowel movement, and what was the consistency- hard/soft/liquidy. 3. Any fever. 4. Has he been on any specific medicines in the past. 5. Is he currently taking any medicines like ibuprofen/advil/motrin etc. 5. Does he have any history of allergies/eczema/asthma. Or any family history of the same. Based on the above answers, there could be several possibilities. 1. If he has history of constipation in the past, then often kids are not able to eat well and suffer from abdominal pain and vomiting especially if they are impacted. 2. If there is a strong family or personal history of allergies/asthma, and he is complaining of pain or difficulty while swallowing alongwith his abdominal pain, then eosinophilic esophagitis may be one consideration. 3. If he has been taking medicines like ibuprofen for a long duration especially on empty stomach, this can cause erosive gastritis which can be the reason for his pain. I would suggest that he see a gastroenterologist if his symptoms are not improving and to evaluate for the above conditions and for further management especially if he has not been able to swallow food. The specialist may recommend endoscopy of his upper intestine if he feels the need to do so. Hope this helps. Regards, Dr. Sumeet.