If it's on one side, then the other, or all over then it can't be a stroke as a stroke would only affect ONE side of your body. It's funny a day last week I was driving and my cheek by my nose started feeling numb (though I was able to pinch it and feel it) then it spread to my entire cheek and I was starting to freak out... when I FORGOT about my cheek it went away! So I chalked it up to anxiety. I think because I felt a weird feeling on the side of my nose that I blew it up all out of proportion.
I get chills in my scalp (one side or the other, going onto my ear and side of face, but ONLY when driving - so I am telling myself it's some kind of a "pinched" nerve in my neck)