I'm 58 yrs old. Dx of Undifferentiated Connective Tissue Disease. I have had Sjogren's sx for many years, including + Shirmer's (sp) but negative SA/SB antibodies and several years ago, negative lip biopsy. Just had endoscopy for the same thing, GERD, heartburn, difficulty swallowing and esophageal spasm. I know the pain you speak of - and how it mimics heart pain. It can very definitely be secondary to Sjogren's or other connective tissue disease. The doctor did 2 dilations and 3 biopsies. Fortunately, despite the inflammation found - no other pathologies were found. Rx'd Nexium, which helped the esophageal problems, but really exacerbated the dry mouth, eyes, nasal passages, etc. Am going to switch to Priolosec in hopes I'll tolerate that better - but the doc said I need to stay on a PPI because of the possibility of developing Barrett's esophagus.
I have found that these symptoms seem to come on like a flare - and then dissipate somewhat - but don't really go away completely. 1 yr ago I had an upper GI which found a small abnormality that shouldn't have caused the problem. When it recurred I finally had the endoscopy - which I wish I had had years and years ago. I have already eliminated many things from my diet because they exacerbated my symptoms. These include citrus, tomatoes, spicy foods, caffeine, soda and alcohol except for the rare occasion. Chocolate is another offender but I am stubbornly refusing to abide by that one. Doc said even if you did everything right (avoid high acid foods, don't eat 3 hrs before bed, jack up the head of your bed x 6 inches, lose weight, small meals, etc. etc. it might never be enough. Thus PPI forevermore.
So - be glad it isn't your heart - always a good thing - but I recommend getting a GI workup. Does anyone on this forum have a problem with the PPI's causing increased dry eyes/ mouth etc? I ended up with a root canal after 2-3 weeks on the Nexium - can't help but think there is connection......
Good luck - hope you get some improvement.