Stomach pain and nausea after eating.vomiting every day until eating smaller meals. ultrasound, stool samples, bloodwork & endoscopy normal. what now?

Functional issues...: Assuming that you have not had bariatric surgery and that you are not pregnant, the symptoms sound functional - conditions such as chalasia, achalasia, gastroparesis and functional gastric outlet obstruction need to be considered. Often a modified pharyngo-esophagram with gastric and small bowel follow-through will provide information complementary to the upper GI endoscopy already completed.