A normal person who eats too much may feel bloated, but there is usually no pain. If you have chest pain after eating, consider chronic gastritis or gastric ulcer. Because after eating, especially after eating a lot, the secretion of gastric acid in the stomach will be more vigorous. If there is gastritis or gastric ulcer, it may lead to a significant increase in pain in the upper abdomen of the patient, sometimes accompanied by nausea, vomiting, abdominal distention and burping. If a definitive diagnosis is needed, gastroscopy is recommended because it is relatively visual and can detect lesions in the gastric mucosa. If it is gastritis or gastric ulcer, symptomatic treatment with oral medication is sufficient, such as omeprazole, clarithromycin, amoxicillin. At the same time, when the pain is most obvious, oral medications can be taken for symptomatic treatment, such as morbutine or omeprazole.