Help, throbbing stomach pain

I have had a small HH for a few years. Before I started a PPI I would get these "attacks" where I would get throbbing pain in my abdomen, below my sternum. It would feel like was I was being stabbed all night until I would vomit once or a few times and then I would feel better. For a little over a year I've been on a PPI I've had my fair share of issues but never that bad again. I also stopped drinking and zyning over a year ago. Last night into today it returned, but not as bad. Now my problem is it never made me sick, and isn't going away. Just a sharp throbbing pain but with no relief. I took Gaviscon advanced which helped for a little bit but it came back worse after a few hours. I didn't have any triggering foods, my last meal was Caesar salad last night. My doctor never figured out why this was occurring the first time so any help is greatly appreciated. Happy thanks giving (not for me) btw m27