It says on the Delphi list that Garden of Eatin chips CANNOT be guaranteed gluten-free due to shared equipment. I dont know if some people eat these chips w/out any trouble but I dont eat them...I just dont take chances with cross-contamination.
Also have you checked your cosmetics, lotions, hair products etc? Especially make sure lipstick or chapstick are gluten free.
Speak of the Devil..I ate Garden of Eatin' blue corn taco shells tonight not remembering the brand name that you mentioned (since you spoke of the chips - i just forgot to add two and two) which of course mention nothing of gluten on the packaging and indeed now I am sick! Apparently not only can they not guarantee - they absolutely are cross contaminated!