Stomach pain, nausea, vomiting, stomach discomfort, may be inflammation of the digestive system, ulcers, dyspepsia, digestive tract tumors, urinary system stone disease. 1. Inflammation of the digestive system, ulcers: chronic gastritis caused by Helicobacter pylori infection, or bile reflux gastritis, cholecystitis, pancreatitis, gastric ulcer, duodenal ulcer and other diseases, there may be stomach pain, nausea, vomiting, stomach upset symptoms. 2. Indigestion: for example, alcoholism, irregular diet, overeating, taking too cold, too spicy, too greasy food will increase the burden on the gastrointestinal tract, which may also cause stomach pain, nausea, vomiting and gastric distress. 3. Digestive tract tumors: for example, esophageal cancer, stomach cancer, benign tumors of gastrointestinal tract and other diseases, which can also lead to stomach pain, nausea, vomiting and stomach discomfort. 4. Urinary stones: Kidney stones, ureteral stones and other diseases may also lead to stomach pain, nausea, vomiting and stomach discomfort. Stomach pain, nausea, vomiting, stomach upset may have other reasons, need to go to the hospital in time to check, clear cause of the treatment of medical advice.