Eating something like bread before drinking alcohol will line your stomach, also drinking water between each alcoholic drink will make it less likely that you are sick or get a hangover. Mixing milk and alcohol is more likely to make you sick as the milk will curdle.
Belching, also known as burping, is the act of expelling gas from the stomach out through the mouth. The usual cause of belching is a distended (inflated) stomach caused by swallowed air. The distention of the stomach causes abdominal discomfort, and the belching expels the air and relieves the discomfort.
Sometimes, the stomach gas is held on to by the body. This can lead to cramping, abdominal pain and a distended abdomen. Abdominal gas is typically caused by diet, where gas producing foods are consumed in abundance. In fact, a buildup of abdominal gas whether, a byproduct of chewing gum and bloating or a meal comprised of beans is one of the most common causes of stomach pain.