Problems with the esophagus (the tube connecting the mouth and stomach) and the stomach can cause chest pain. Acid reflux and gastrointestinal esophageal reflux disease (GERD) are both common causes ...
This can result in a sour or bitter taste in the mouth. The reflux of stomach acid into the esophagus can cause chest pain or discomfort. In some cases, acid reflux can cause irritation and ...