Stomach Aches After Eating: The stomach is an organ in the upper abdomen, between the esophagus and the small intestine. It’s a part of the digestive system. The stomach produces acid and enzymes to digest food. It also stores food until it leaves the body.

There are many causes of stomach aches after eating, such as overeating, eating too fast, overeating fatty foods, or eating foods that don’t agree with you.