Any pain that occurs in the abdomen is called abdominal-- or gastrointestinal-- pain. While abdominal pain may have causes that are not associated with underlying conditions or diseases, such as overeating or excess gas, it is often related to chronic conditions. Chronic gastrointestinal conditions include inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), and ulcers. Abdominal pain usually comes with symptoms, such as diarrhea, bloating, and cramping.