Gluten intolerance?

I've never had issues with gluten before but this pregnancy it makes me feel HORRID! I know it is gluten because I eliminate it and feel fine, I go back to eating it and immediately feel like poo again. Bloating, abdominal pain, diarrhea, nausea, headache and fatigue 😖 I'm actually going to my regular doc to rule out Celiac 😕 has anybody else experienced this only in pregnancy? This is my third baby.