Hey GFreeMO... I run a low grade fever when I have been glutened. Done it my whole life but when I was a kid they didn't know why. I get the foggy head also and it lasts for a week or better. My doctor said I was super sensitive too. I think we all have some ways in which it reacts with us that differ one from another. My fingers also get bruised badly and then some of them will fracture. I am pretty sure thats from not absorbing calcium. Still I am finding new ways to live everyday and overall life is getting better.