Oh, I never updated on this- I had mild anemia (and protien deficiency), other mild deficiencies typical of celiac (I forget them all), and low Vit D. Taking a Vit D supplement has helped tremendously, and I'm making an effort to get more iron in my diet. Some issues with fatigue have recurred recently, but I sort of suspect at least some of that is that where I am it's cold and gets dark at 4:30pm now and that makes me want to hibernate. (The tiredness popping up has almost directly correlated with the clocks being set back in November.)
My folate (iirc) was actually (non-dangerously) high because I'd been eating so much Chex, though, lol. I have a friend (non-celiac) who had the same thing come up in bloodwork for the same reason.