Hey
Iam also going through the same issue.
I visited many doctors , took many tests but no one seems to understand whats going on. They think its GERD. But its not. I took medications, did acupuncture too but no use. My dentist told me its Tmj. I started using night guards. Even thats of no use. Finally i figured out its something to do with my hyoid muscles. So i will be soon visiting a craniosacral therapist. I would suggest you to do the same. Hope this helps.