Those with on-celiac gluten sensitivity (NCGS) can have almost as many long term health problems as a celiac....just minus the villi damage. Eating gluten can increase your chances of other health problems, many of which are permanent. Those with NCGS must avoid gluten.
What she said! For example, I'm NCGS and will never get my gums back to normal (they receeded horribly) and my enamel is so far gone its a miracle if I don't have a cavity at every dental visit. I am just past 4 weeks gluten-free again (after gluten trial for EGD), before that I had been "strictly" gluten-free 8 weeks but still had lots of symptoms because I wasn't avoiding CC or paying enough attention to labels. I have totally done what you did. The regret quickly followed. Lol I think it's a bit harder to get past the "being rude" feelings when you aren't actually diagnosed (Celiac or otherwise)...at least for me it is, for some silly reason I feel like I have to justify my reaction to gluten with something concrete. Well duh Amy, as if getting wicked sick for a week after even a tiny bite of gluten containing food isn't concrete?? *face palm* I guess what I'm trying to say is, it's easier to say "I have a disease that requires me to be a nazi about avoiding gluten." vs. "Gluten makes me sick as a dog so I avoid it at all costs." Especially right now when gluten free has become a fad diet option.
Anywhoo, don't beat yourself up too much (well, just enough to learn from this mistake 😉). Hope you're back to 100% quickly!