I'm glad to hear that it is not Lupus.
There is enough evidence to show that gluten is "more complex" for the human digestive track and that auto-immune disorders do better on a gluten free diet.When your testing is complete, try a gluten free diet. If you feel better not eating gluten, then don't eat it. Your body's reaction is a "scientific" proof. (You will unfortunately have an accidental glutening that may prove this.)