Here are two totally different answers...my best friend has the same issue due to anxiety and a family member has the same issue and it's heartburn (diagnosed by a dr and w/out the typical symptoms).

My family member is trying some over the counter stuff like Pepcid AC, as the dietary changes proposed to her sounded pretty impossible. My best friend is working on his anxiety in therapy...his pdoc said there was some med he could put him on, but that he would be pretty drugged when he took it so they have not gone that route.

I hope you are feeling better soon!!