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.
Your abdomen could be swollen for a number of different reasons. These range from eating too much to pregnancy. Only your doctor will be able to determine the exact cause of your swollen abdomen. Some of the most common causes of abdominal swelling include overeating and gas. Swallowing air as part of a nervous habit or from eating foods that are high in fiber can lead to gas production.