Gastroparesis, Gastritis, Dyspepsia, & GERD

I need advise, my GF is really hurting, and her Docs can't give us answers. We need a real live Dr. House I guess.

She is 22, normal weight with BMI of 21.3, no current or chronic medical conditions except this problem.
The Docs think its GERD and gave her H+ blockers which do not help.

When she eats food it is very slow to digest especially dinners. If they are greasy from outside restaurants its exceptionally worse. the other day she had some salmon cakes  at 10 PM and she vomited at 7 am and it still looked undigested. this has become a chronic condition. It has affected her sleep and life patterns.
when she eats (and not alot i should say) she says she is so full she wants to puke.. and sometimes she does. alot of the time in the middle of the night it wakes her up and she vomits.
other irritants besides grease are EtOH and oniony or galicy foods.
She has the symptoms for Gastroparesis, Gastritis, Dyspepsia, & GERD. I don't know if it is actually these or something else. But anti acids sometimes work mostly not, same with H+ inhibitors.

please help