The feeling of a swollen or bloated tummy can be quite uncomfortable or even painful. This may happen occasionally, after eating generally or after eating certain foods, or may be persistent. People can also pass a lot of wind from either end of the body which can be upsetting or embarrassing. There are a few causes of this and various treatments which may help. Often it relates to the diet that we have. Some people can be sensitive to certain foods and these sensitivities may change with age.