Always retching. Nausea. What's going on?

Retching nausea may be the following reasons: 1. Pregnancy, women will show retching nausea pregnancy reaction after pregnancy. 2. Vertebral artery compression caused by insufficient blood supply to the brain, can cause retching nausea. 3. Gastritis, gastric ulcer, gastrointestinal cancer and other malignant tumors can cause retching nausea. If gastritis caused retching, nausea, can take some lactase tablets treatment, generally the same day can see obvious results. Indigestion patients can eat more fruit, fruit helps digestion, but also can alleviate nausea and vomiting phenomenon. It is recommended not to eat spicy things, but also appropriate to drink plenty of water. In addition, patients with unclear causes should go to the hospital for relevant examinations to clarify the cause.