Basically, my arms get colder and lose feeling much more easily than most peoples' arms I know, plus I can barely feel my fingers. They're cold to the touch in mid-70-degree weather, and when I walk in any temperature but the 90s and up the undersides of my arm get pretty chilly after a few minutes. Not to mention sometimes I'll wake up unable to move or feel my left arm for up to half a minute.
Should I see a doctor?