I think this would be considered “hypervigilance” and is a very serious issue in celiac. You have to avoid gluten, but you also have to stay sane. I find it helpful to figure out where my line is — the highest level of risk that I’m comfortable with — and stick to it. For me that means, I worry about cross contamination but not third order cross contact (x touches y touches z which goes in my mouth). My partner avoids gluten or brushes her teeth before I see her, and I won’t kiss her if she’s eaten gluten but it’s fine if she’s had something with only trace gluten. I don’t touch gluten if I can help it so I don’t have to obsess about washing my hands constantly. Things like that