Thanks glenntaj.

My sister had blood drawn for a TTG test done over the weekend. Is this the same as the antigen test you mentioned, or something different?

We're going to see the results of this one before deciding what to do next (likely we will either go with the Lyme antiobiotics route, and/or keep seeing if there are other allergens/sensitivites).

Is the TTG test a good initial method for seeing if Celiac may be a possiblity? Our MD indicated it should be a good indicator.