it seems like Gerd/LPR, and sinus symptoms are often connected.
I have both and don't know which causes which, or what came first
but the reflux causes me a lot of issues above my neck, nose, ears, headaches, sinus drainage then sets off the reflux, and back up we go
it seems like a vicious circle
I've also had the heart palps and anxiety attacks, but now that I know what is causing it I feel more in control and don't let it "get to me" as much and that has helped me through them.
i wish you well