Gil-Gastroparesis is unrelated to obstruction but a disruption of nerve stimulation. The stomach has a delayed emptying that takes hours for some people. It affect people with diabetes more so then others but that is just one of the risk factors you need to know. It is not Diabetes thank-God but very serious if you don't take care and have aRadioisotope test done. They feed you 2 eggs etc.
Symptoms are nausea abdominal fullness about five min.
Sudden weight loss. You don't want to eat. Some people confuse it with I.B.M. Some with ulcer. There is no known reason or cure. If your doctor can't give the test go to the nearest medical school.