Every food commercial, advertisement, and packaging in the US is currently protein obsessed. I just bought 3 burritos, and the most noticeable thing on the entire package is its protein content. TV commercials about waffles are advertising that they have X amount of protein per serving. The products in my jobsite's vending machine have protein all over every package.
There isn't really any evidence for gluten sensitivity. You're likely reacting to something else, and it's getting blamed on gluten. Celiac of course is a real thing. But there haven't been any studies finding gluten sensitivity to have any tangible evidence. But, as always, do what makes feel better.