--I would go gluten-free.

Transglutaminase IgA titers are most closely associated with the existence of gluten-mediated intestinal damage (some of the other tests, like anti-gliadin, are less well correlated with that and may be more correlated with manifestations of gluten sensitivity outside the gastrointestinal tract).

In the end, of course, no one needs ANY doctor's permission to remove gluten from diet. We can all get along quite nicely without gluten, even if we do not have issues with it. Going gluten-free can certainly be inconvenient, but one does not need to miss out on anything essential in going gluten free, as all essential nutrients can be obtained through non-gluten sources. The process just requires vigilance and planning.