Eating is always dry heaving, chewing and chewing on nausea, may be eating improperly, may also be gastritis, pyloric obstruction, gastric ulcer and other diseases. 1. Eating improperly: such as drinking alcohol, eating too fast, too greasy, too much, etc., can lead to eating always dry heaving chewing nausea. 2. Gastritis: refers to chronic inflammatory diseases of the gastric mucosa caused by different etiologies. Mainly manifested as epigastric discomfort, fullness, nausea, loss of appetite, acid reflux, belching and other symptoms, can also cause eating always dry heaving chewing nausea. 3. Pyloric obstruction: refers to the pyloric part of the stomach obstruction. Mainly manifested as a large number of vomiting overnight food, can be accompanied by nausea, abdominal pain, abdominal distension, acid reflux, belching and other symptoms. It can also cause the meal is always dry heaving chewing on the chewing of nausea. 4. Gastric ulcers: ulcers in the lining of the stomach, mainly manifested as regular epigastric pain, obvious after eating, can be accompanied by nausea, vomiting, acid reflux, belching, anorexia and other symptoms, can also cause eating always dry heaving and chewing and chewing to commit nausea. There are many other causes of nausea when eating and chewing, which should be taken seriously, timely consultation, identification of the cause of the disease, and follow the doctor’s instructions for further treatment or therapy.