Welcome to Neuro Talk. You found a place that has alot of supportive people. Auto immune conditions are sometimes hard to diagnose. MrsD may have some of the best knowledge on that subject. I take it you have been to a vascular specialist? I hope more people respond to this post to help you. I wish you all the best. I just read another post about a gent unable to get a DX from Mayo clinic with some dismay, as that place, and teaching hospitals are where I usually recommend to go. I have auto immune conditions, and Mayo is where they diagnosed me. ginnie