GERD can indeed cause swallowing issues as can thyroid issues.....
There is a test called a barium swallow test...doesn't taste great, but not a diff one to get thru.
There is also a PH test....it all depends on ur GI dr....I have a hiatal hernia..had an endoscopy to determine that.....
I totally understand , I have back burner-ed many other health issues as a result of chiari too, but it is diff to deal with the GERD and not to hard to resolve if u get tested.....change of diet can help as well as lifestyle modifications....see the Health Pages for the GERD forum.....for tips on lifestlye modification and foods that r safe and foods to avoid with GERD.
http://www.medhelp.org/forums/GERD-Acid-Reflux/show/333?camp=msc
"selma"