Most people don’t realize this, but glyphosate is sprayed on wheat crops right before harvesting. The wheat berries are saturated with it to speed drying of the crop, saving time for farmers.
The result, however, is that your non-organic wheat products (breads, cereals, pasta, donuts, etc.) are very likely contaminated with alarming levels of toxic glyphosate herbicide (which is also linked to cancer).
Organic wheat is supposed to be glyphosate-free, so try organic wheat products and see if that gets rid of your supposed “gluten” problem. For many people it does!