Wheat, barley, and rye all contain gluten. An interesting test (if you’ve got nothing against 45 day migraines, I guess) would be to go back on rye and barley-containing foods, but not wheat.
My wife seems to be allergic to wheat but not other grains containing gluten - so beer is fine with the exception of wheat beers, and serious German no-we-really-mean-it rye bread is also alright. Barley flour also is very nice for cakes and whatnot - the only thing I can’t easily make at home that I used to is kneaded breads.
