It's called gluten intolerance (or sensitivity), not "self-diagnosed wannabe celiac stuff" and last time I checked it affected something like 5% of the US population (some state the incidence rate is as high as ~20%).

Most people just live with the stomach discomfort because it's difficult to try a gluten-free diet. And dismissive comments like yours also aren't helpful in motivating people to experiment.

I lived with stomach issues for 30+ years, and after trying a myriad of solutions, from eliminating dairy to exercise, I finally tried eliminating gluten from my diet. That did the trick.