After dinner, my mouth will immediately sour. What's going on?

This condition is considered to be caused by hyperacidity, gastroesophageal reflux, usually overeating, eating greasy food, eating spicy damage to the spleen and stomach. Need to go to the hospital to check a gastroscope, do a C14 blowing experiment to see, if accompanied by Helicobacter pylori infection need to give quadruple therapy treatment, oral amoxicillin, metronidazole, pectin bismuth, omeprazole treatment, and with mosapride to prevent gastric acid reflux, medication for two weeks recheck.