Yes they are similar in many ways. I found out when going to my new rheumy for the fibro that when they rule out lupus they usually rule out MS too, but they never did for me. He also was suspicious of my symptoms saying that some of them couldn't be explained by fibro and seemed more neurological. I do trust his assessment as he is well known nationally as a doctor and researcher. He knows his stuff. He doesn't doubt I have fibro but thinks there is much more going on with me. I won't stop til I have answers or have turned over every stone.