These sour tasting burps are due to gastroesopahgeal reflux disease. Try raising the head of your bed about
four inches with blocks. It also might help to avoid eating or drinking for two hours before you lie down. To
help control the stomach acid, one should not drink alcohol or drinks with caffeine in them, or eat chocolate
or spicy or greasy foods . Take some OTC antacid like Mylanta. You can also take zantac(ranitidine)or
prilosec(omeprazole) after consulting your physician. Also keep your fluid electrolyte balance optimum by
drinking lots of fluids. If the symptoms persist then please consult a gastroenterologist. I sincerely hope
that helps. Take care and regards.