Several times a day I get a "pin prick" feeling between my shoulder and elbow.  It isn't real painful, but it makes me "jump" sometimes cause it is so fast.  Feels like a shot almost but not as intense.  I've been having it for about a week now...always in the same exact spot. Any ideas?
Due to sudden irritation of the nerves .no need to worry, if it persists for long u can meet aneurophysician