Hi, Ive been through exactly the same as you, so i feel for you, i know how depressing it is.
Sounds like gastritis, like I had. You should really be put onto PPIs, for longer than 5 days! Standard course here is 3 months. domperidone can help nausea but it also speeds up how fast the stomach empties, and an empty stomach isnt good for gastritis.
My advice is eat frequentl, never have an empty stomach, dont eat fatty foods, dont eat acidic or spicy foods, and take some ant acids just after each meal.
it can take quite a while for things to get better, and dont start back on fatty foods once youre feeling better as youll end up back to square one, take it easy.
GERD, Anxiety, Depression, Rolling Hiatus Hernia, Esophageal Hypersensitivity