Is no fun! It sounds like your esophoghus was really irritated - probably by the meds but may be a coindidence and is part of your autonomic PN? Constant GERD can damage your esophoghus - perhaps see your doc for one of the standard GERD meds like Prevasid or Prilosec (you may be able to buy these over the counter)...... and if that doesnt help maybe they need to take a "look" into your throat and stomach with an endoscopy.... not such a bad procedure.....

Feel better!