I was in the ER three times in November because of almost blacking out and esophagus spasms. They thought I had a heart ailment. After a month of tests, it ended up being esophogitis and gerd. They gave me nitro glycerin pills to put under my tongue in case they ever got bad. I thought those pills were just for a heart attack. But recently by dr. informed me that they also help spasms.
Endoscopy should give you some answers. For me it showed slight irritation, but nothing else. Biopsy reveled nothing. Eventually the spasms went away after being on prilosec for 8 weeks. Now my stomach is finally starting to heal from the prilosec. When I do reflux, I do get the spasms, a little light headedness and pressure in my sinus.
I hope your right!! I was put on Pantoprazole which seems to help the reflux, however my other symptoms are worse then the reflux. You having pressure in your sinuses which I'm surprised thats not bothering me since everything seems to affect my sinuses. I'm having the chest pain, pain between my shoulder blades, lump in my throat and I lose my breath very easily which I'm contributing to the lump in my throat.