This gluten free diet notion and it's relation to autism is popular idiocy.
Gluten sensitivities equally affect some NT's and Autistics - no greater prevalence in autistics at all!
The effects are only APPARENTLY excaserbated with autistics; the true difference is nil.
If you are on gluten free because you are autistic; don't bother. It's bogus.
However! If you have gluten sensitivity issues, regardless of autism, then you'd best continue with the diet. However, by your account, you have consumed gluten and noticed no difference, so it's probably in your best interest not to take the diet.
Gluten has absolutely nothing to do with AS, I can guarantee you that.
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Oh, well, fancy that! Isn't that neat, eh?