Welcome to Neurotalk, Sonofdy.

If there is any thing I have learned, it is that MS-like symptoms occur in a myriad of other diseases. Lacking a test to confirm MS, it becomes a disease of exclusion. You must exclude all the ones that are more common and easier to diagnose. These include a low B-12 level and Lyme Disease.

I have or have had all of the symptoms you mention- especially short term memory (names), jaw clenching and the burning thighs w exertion. I've had MS since I was 21- now 64.

You might want to look up Uhthoff's Syndrome. It can happen in MS when our temperature is raised (as in running). There can be other components, including vision, but they resolve when you cool down.

Best to you and let us know what you find out please,
ANN