Posted 1/7/2015 4:16 PM (GMT 0)
Gas in the stomach (from H. pylori infection) would cause bloating in the upper middle abdomen and excessive burping.
Gas in the intestine, for example, due to fructose or lactose malabsorption, or parasites, would cause bloating in the lower abdomen and excessive wind. You may want to try a low-FODMAP diet (low in fructose, lactose and polyols).