Are you seeing a gastroenterologist?
Your meds seem pretty normal for what they usually prescribe. If they're not working it may be time for more testing to see what's going on. They can only see so much peeking down your throat. They need nice pictures of what's happening when you swallow and to find out where the stomach is sitting. A barium swallow will do just that without being a nasty test.
If it turns out you have a hernia letting your stomach slide up into your chest part of the time or they see bad reflux going on during the swalows, they will want to do more tests. Don't worry about
that too much yet. Even if it comes down to surgery, you've been through the same sort of thing getting your gallbladder out.
We're here rooting for you! Best wishes!!