How do you know if your stomach acid is too much or too little?

The parietal cells in the stomach secrete gastric acid, which is used to digest and decompose food. The amount of gastric acid secretion is related to factors such as the constitution and food intake of the human body and neurohumoral regulation. Excessive gastric acid secretion will make people feel heartburn and acid reflux. Too little gastric acid secretion is not conducive to digestion of the human body. If gastric acid and heartburn are shown, it is suggested that gastric acid secretion is excessive, and acid inhibitors need to be applied for symptomatic treatment. If stomach distension occurs.