If you've already given up gluten containing foods, and are feeling much better, then chances are high that your body has cleared the antibodies that labwork looks for and you'll come back with a false negative to gluten allergy. This is one of the problems with testing after someone has avoided gluten for a while.
IMO save yourself the time and money... let common sense be your guide.
You don't need to draw and test blood, to know you're feeling so much better by avoiding gluten... not eating it and feeling good, eating it and feeling horrible, is the ultimate test!
Additionally there's a percentage of the population that has wheat allergy with no markers for gluten intolerance/celiac.
Glad you're feeling better.
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