Thelabdude - dunno if it confirms anything for you, but one of the triggers that my wife knows she ate some gluten is sores in the mouth. Nothing as horrible as you’ve described, but then again she’s also been pretty careful, so the amount of gluten ingested is usually fairly small.*
WhyNot - very happy to hear your daughter is doing well! Two symptoms that I eventually led doctors to my wife’s diagnosis were a general fatigue+fogginess and what appeared to be lactose intolerance/irritable bowel. She had both for a good portion of her teen years, but they were diagnosed as “get more sleep” and “avoid milk/lactose/etc”. Interestingly, after going off gluten both issues pretty much disappeared. Celicas/Gluten Sensitivities are very hard to diagnose.
The worse part (someone upthread mentioned this, but it’s worth repeating) is that the blood test to “confirm” Celiacs is diagnostically significant only in like 60 or 70% of the cases (don’t quote me on the figure, I can’t find a cite, so I’m going from memory) so 30-40% of people have a gluten sensitivity or even Celiacs and don’t know it unless they try a GF diet for a few months and “feel better”. It’s difficult to live with.
- Meaning she doesn’t eat a big bowl of pasta and then gets a sore - its more like she at some soup or maybe a sauce used over meat used a little bit of flour as a thickener, or a burger used some breadcrumbs as filler. We try very, very hard to avoid running into the situation of the big bowl of pasta because we don’t want to know the consequences.