My stomach feels extremely bloated when I eat small portions of food, what's wrong. It's also very painful when this happens.

Gastroparesis or ? Gastroparesis means a slow-emptying stomach. Causes may be mechanical (obstruction, or the stomach outlet narrowed from healing of past inflammation, treated by endoscopic dilation), post-inflammatory (due to swelling of the stomach lining from ulcers, treated with acid blockers), or neurologic (as with diabetes). By the way, any chance of an eating disorder?