Too bad Knott isn't still around to give you the lecture about how it isn't a fad ...

(I miss her an awful lot around here, not just for that reason.)

Just because cutting out wheat makes you feel better doesn't necessarily mean you're gluten intolerant, though. It could be one of the other proteins in wheat. As long as you don't react to very small amounts, I don't think it's terribly important to know.