You should see a GI about it...they deal with esophageal issues.

The manometry is an uncomfortable test but good test to confirm/deny the condition. They treat this the same way they treat vasospasms of cardiac arteries (symptoms are exactly the same---chest pain like a heart attack). Again, very treatable.

Being that you have other autonomic issues with BP, swallowing, etc, this is certainly related (spasms of this nature are typically autonomic related). Hope you get to the bottom of it. Not sure why you are seeing endo (hormone doctor) for this.