Acid reflux or gastroesophageal reflux disease (gerd) can sometimes cause excessive belching by promoting increased swallowing chronic belching may also be related to inflammation of the stomach lining or to an infection with helicobacter pylori, the bacterium responsible for some stomach ulcers. Stomach acid gas pain. Acid can build up in the stomach due to diet, excessive alcohol consumption, abnormally high acid production, or it can simply be hereditary when excess stomach acid goes untreated, it can lead.
stomach acid gas pain
