I am a 23 year old female and i have noticed that many times (mostly while sleeping) my arms will become numb or have the pin and needle feeling from elbow down to my fingertips. to get rid of this, i will have to open and close my hand a few times. at the same time, i have a burning sensation in my thigh, almost as if it is in my muscle. i also noticed today, while looking on my fingernails, that they are bluish/purple from the middle of the nail to the bottom of the nail. on top of the bluish/purple color, they're very white (the white that appears if you press your fingernail) , except my fingernail is not being pressed in anyways. does anyone have any idea what this may be?