Thanks very much. I will look these criteria up. I live in the place (a group of Scottish islands) with the highest MS rate in the world. I do therefore trust that my neurologist knows what to look for. But it's good to also know what the small minority of MS sufferers who don't fit the criteria show. I just got print outs of my test results from the neurology tests in January. The CSF results and all results are within normal range as far as I can see apart from the O band screen which has nothing beside it - presumably this was because of the contaminated fluid.

Album, glucose and protein levels were all within normal range and cryoglobulin was negative so not Lyme. He must still be concerned about my symptoms though because he said he was going to speak to my rheumatologist.

Having failed to tolerate (severe reaction) four immunosuppressant drugs for RA now - they will not want to start me on the newer biologic drugs if there's any possibility that I have MS because these can cause or make MS much worse I believe.

Again many thanks.
Mat