Tummy pain when eating easily may be caused by the following reasons: 1. It is caused by intestinal spasm, acute pancreatitis, enteritis, etc. 2. Eating too much food or eating a lot of cold things can also cause intestinal spasm and no specific pressure points on the patient’s stomach. 3. Most of them are caused by overeating or eating too much greasy food, which causes indigestion in the intestine.4. Having roundworms in the biliary tract blocking the bile ducts can also cause inflammation of the pancreas, resulting in stomach pain when the patient eats.5. Patients suffering from enteritis will also be prone to lower abdominal pain with nausea and vomiting, and discomfort when eating. Especially after eating unclean food, there will be more severe diarrhea, which affects the intestinal health.