I'm from Greenville but live in GA now. I still go up there to see my celiac doctor though, who is in Travelers Rest. Our Earth Fare here in GA recently had a celiac talk (which I unfortunately missed) - maybe the one on Pelham has them from time to time and you could meet people there. The employees might also know of local happenings with the celiac community.
Who is the doctor you see in travelers rest?