I also think you should go back to the doctor or get a new one. Be very persistent if you have to. I feel for anyone going through this. Trust me - I know. It's absolutely the worst but you will get better. I once could also not eat anything but Ensure drinks. The pain was so intense, I was in borderline shock! I lost over 30 pounds!
To get my condition under control I was on 1 ppi 2x daily (rotated between Zergerid, Nexium, and Protonix), 1 anticholinergic (bentyl) 4x daily, 1 anti-ulcer (sucralfate) 4x daily, 2 herbals: dgl licorice root 4x daily, mastic gum 4x daily, and activated charcoal pills as needed (there was a limit to the charcoal pills though). I also couldn't eat any solid food or all hell would break loose. So I basically lived on Ensure drinks for a long time. Give it time because you will get better very slowly.
One thing you can go out and buy tonight is Aloe Vera Juice. Be sure to get the best possible stuff because they all vary in various degrees of quality. I bought some really good stuff at Walmart and it helped me through some tough weeks of agonizing pain.
Also I assume you got tested for h. pylori? If all tests come back negative you can try and take the CDSA 2.0 from Geneva Lab's... It may help you. It costs a lot but it tests for all the stuff the doctors won't test for.