I know all about the stress and gut brain connection. Unfortunately, without disowning my children and quitting my job, some stress can't be alleviated. I'm trying so hard! I also have malabsorption so all my vitamins and minerals are low despite supplements. Having MTHFR doesn't help the situation, as well as Ehler's Danlos. I even have to do iron infusions every 6 months or so. I'm trying some calming stuff and meditations as well as the neem and lots of supplements, and a supplemental Fairlife protein shake a day. I've also cut out almost all lactose. It sounds like you have an amazing doctor. It's shameful functional docs aren't covered by insurance and supplements aren't covered either, when that is so much better for us than pharmaceuticals.