Chronic gastritis patients generally do not cause symptoms of chest tightness and shortness of breath, chronic gastritis patients are generally the main clinical manifestations of epigastric pain and hidden pain, which can be accompanied by abdominal distension, nausea, acid reflux, belching, indigestion and other symptoms. If the patient has chest tightness, shortness of breath, should be alert to organic heart disease, such as angina pectoris, myocardial infarction, heart failure, common causes are coronary heart disease, hyperthyroidism heart disease, heart valve disease, hypertensive heart disease and so on. It is recommended that the patient go to the hospital to complete the electrocardiogram, cardiac ultrasound, venous blood sampling to check the cardiac enzyme spectrum and other related tests to assist in the diagnosis. After the heart disease is clearly ruled out, electronic gastroscopy can be done to find out whether there is gastroesophageal reflux disease (GERD). Because a small number of patients with GERD will also have chest tightness, chest pain, dyspnea and other conditions.