Where I live, its been about 100 degrees. Of course, being that MS is what I'm worried about, I've noticed my symptoms are a lot worse. My leg seems to be really stiff, and the tingling/numbness is driving me just about crazy. Does anyone else here notice an increase in tingling/numbness while in the heat? Again, I've been to 6 neuro's and had a clean MRI, so I'm not really sure what the hell is going on. I even felt dizzy today and just off-balance, something that usually never happens to me. Any info would help, thanks!