@contentandwell I used to have a lot of brain fog as well. Gluten is not the only culprit that triggers the production of phlegm; sugar does it as well (for me). I had a friend with full blown Celiacs and he had a book about it. At the end of the book there was a list of all of the disorders and illnesses that Gluten sensitivity and Celiacs can bring on. The list contained pretty much every disease out there, In other words; a broad spectrum. I noticed as a small child that if I ate cake, cookies, pancakes, pie, etc., then I couldn't breathe well afterwards. So, I instinctively just quit eating those things. I was constantly made fun of by friends and family because I declined eating my own birthday cake every year. My bags of Halloween candy would go un-eaten, etc. I didn't learn about it being a real thing until I was an adult. From what I have read, it may not be the gluten in the flour that makes people ill, but rather the Round-up pesticide that is used to force kill the wheat fast to get it into the dryer for processing.