Excuse me, how is stomachache after eating a meal to return a responsibility

A meal on stomach pain may be caused by eating a lot of spicy food to stimulate the gastrointestinal tract, if eating spoiled food, food poisoning, will also cause stomachache. If there is gastritis, gastric ulcer or even stomach cancer and other diseases, will also cause stomachache. Suggestions: frequent stomachache patients can go to the hospital for gastroscopy to determine the cause.