Is not pregnant always nausea, vomiting is what reason

No pregnancy and often nausea, vomiting is caused by chronic gastritis, gastric ulcer, dyspepsia, hepatitis, cholecystitis. Chronic gastritis patients due to the presence of inflammation in the gastric mucosa, so the stomach in the digestion of food will cause friction on the stomach wall mucosa, causing stomach wall spasm, contraction, then will also show nausea, vomiting feeling. Gastric ulcer patients in a period of time after eating food, due to food digestion will stimulate gastric acid secretion caused by excessive stimulation of ulcer surface, then because of stomach wall spasm, contraction caused nausea, vomiting, when the stomach peristalsis delay stomach food digestion emptying time will be extended, long-term retention in the stomach will cause dyspepsia. Because food in the treatment of stomach wall will cause irritation gas caused by increased stomach pressure, so it will also cause nausea, vomiting symptoms, hepatitis and cholecystitis in the sick period not only on the metabolism of toxins will cause an impact, and bile secretion will also show obstacles. Many people in the sick period because of the lack of bile digestion in food and cause digestive symptoms, in addition to nausea, vomiting, but also accompanied by skin jaundice, high fever, greasy and other performance.