To determine your hyperacidity, you can judge by your own clinical manifestations, auxiliary examinations and other ways. 1. Clinical manifestations: Excessive stomach acid is mostly seen in gastroesophageal reflux disease, peptic ulcer and other diseases. Generally speaking, patients with hyperacidity can have typical symptoms of reflux and heartburn; in addition, epigastric discomfort, abdominal distension, nausea and vomiting should be suspected as symptoms of hyperacidity. 2. Auxiliary examination: Clinical examination can visually measure the value of gastric acid and determine whether there is excessive gastric acid. Common tests include 24-hour pH measurement, gastrin measurement, and basic gastric acid secretion measurement. Therefore, those who suspect excessive secretion of gastric acid should go to the hospital for examination in time to determine whether they are secreting too much.