You also could have some other underlying problem that causes or contributes to both AF and gluten intolerance.
For example, search for DPP IV + gluten.
Mercury inhibits that enzyme. It also has a negative effect on the stress response system. Boyd Haley former chair of chem dept at the U of KY says the hormone receptor for pituitary hormones ACTH, FSH, etc, hold onto Hg about as well as anything can. It seems that a majority of members of detox groups have stress response difficulties, including fatigue.