Gastritis is likely to cause chest pain, for example, reflux gastritis can cause acid reflux and heartburn, which in turn may cause chest pain. The symptoms of gastritis are: 1. stomach pain, the degree and onset of stomach pain varies from person to person, some people feel stomach pain before and after meals, some people also feel stronger stomach pain in the middle of the night, some people feel a dull pain in the stomach, some people feel particularly strong stomach pain. 2. abdominal distension, patients with gastritis will experience The most important thing is that you should be able to get a good idea of what you want to do.