Stomach pain after eating and walking may be caused by stomach ulcer, intestinal cramps, appendicitis and so on. 1. Gastric ulcer: if the stomach pain after eating and walking is a regular occurrence, it should be considered to be caused by gastric ulcer, the patient will also have poor appetite, vomiting blood, bloody stools, fullness and bloating and other symptoms, you can use omeprazole, famotidine, thioglycollate and other treatment. 2. Intestinal spasm: stomach pain after eating and walking may also be caused by severe spasm of the smooth muscle of the intestinal wall, the pain is more sudden onset, to the umbilical cord around the obvious, you can use belladonna, atropine and other treatments. 3. Appendicitis: if the patient’s stomach pain after eating and walking is gradually shifted to the right lower abdomen with the passage of time, it should be considered to be caused by appendicitis, and the patient will also have anorexia, nausea, and pressure and pain in the right lower abdomen, which can be removed by surgery. All of the above medications and treatments should be administered under a doctor’s supervision.