So sorry to hear of your issues. I also get back pain, but it is most often after meals. The vagus nerve runs behind the esophagus and it could be possible that you have some vagus nerve damage from reflux. Have you been through all of the tests like endoscopy, PH Monitor, Mamotry, Barium Swallow? You will need to get these tests done for further answers. Once they are done, the doctor can discuss a possible suergy option if that is what is needed. What sort of lifestyle changes have you tried?
GERD Moderator; Diagnosed GERD, no other medical conditions (this one is enough)