A dull pain in the upper part of the stomach is considered to be caused by the following reasons: First, it may be caused by gastric ulcer, which will cause symptoms of acid reflux, belching, and chest tightness, causing gastric acid to corrode the gastric mucosa. , it is recommended to go to the hospital for gastroscopy and electrocardiogram. The second type may be caused by Helicobacter pylori infection. Pay attention to a light diet and avoid cold and spicy foods. You can take omeprazole capsules, Debitex granules and ranitidine. The third type may be caused by spleen and stomach deficiency. If shortness of breath occurs, you can take Xiangsha Liujunzi Pills.