Check you diet. I assume the doctors checked for Hpylori. Most medical treat the symptoms and not the cause and 90% of our digestive problems our from our diet. Make sure you are aware of every chemical you put in your body. Research the dangers of microwaves. All breads have yeast and yeast causes many physical ailments. READ ALL LABELS!
hmmm. just a couple guesses, mind you im not a doctor, im just an RN planning to get her NP, i would go the neuro route, only because nausea could be a inner ear, or neuro problem. I was the same-alll the tests you had done I had as well-at 19 years old. look up meckels diverticulum and see if it fits your description, if not, id suggest you go to your doctor and ask for a full workup-not just digestive...