Symptoms of food reflux include chest pain, acid reflux, nausea, difficulty in swallowing, and throat discomfort. 1. Chest pain: manifested as burning sensation or discomfort and pain behind the sternum. 2. Acid reflux: acidic liquid in the stomach or reflux of celiac disease and gas into the mouth, which can be relieved by standing or using alkaline medication. 3. Nausea: patients may also experience atypical GI symptoms such as nausea, epigastric discomfort and belching. 4. Difficulty in swallowing: It is relatively rare, which is due to esophageal spasm in the early stage and fibrous esophageal stenosis in the late stage. 5. Pharyngeal discomfort: mainly sore throat, hoarseness, foreign body sensation in the pharynx, and so on. 6. Extra-esophageal manifestations such as pneumonia and asthma. Patients with food reflux should go to the hospital in time and receive standardized treatment under the doctor’s guidance.