Have you had B12 levels checked?

For the past few months, I've been taking several supplements (a multi-vitamin, an iron supplement, a vitamin C supplement, and a magnesium supplement), all of which state that they are gluten free on the label.  

Maltodextrin is typically made from corn.

Are you taking any vitamin and mineral supplements to address the deficiencies and if so, are they gluten-free?

I don't have access to the report and don't know which antibodies were found. I can email my doctor and ask her for it. GI Map: It is a fecal, microbial assay. It was done through https://www.diagnosticsolutionslab.com/tests/gi-map I don't consume oats-- because I don't like them.  I am trying to figure out if my Armour Thyroid has gluten in it. It is looking like a likely culprit. Tom's of Maine says that all of their toothpaste is gluten free. I share a kitchen with my son who eats gluten. Mostly, this translates to him eating his own bread. He eats my gluten free pasta and other items when we have a shared meal.