Hi, I am 28yr old female. I got a burning sensation on the top of my right arm yesterday, during the night I kept waking up as my arm was hurting. This morning I have woken up and the burning sensation is still there and my arm still hurts, only now to find the burning sensation has gone down my arm to my fingers, I had trouble this morning changing gear in my car, also when I washed my hands the contact of the water gave my arm a funny feeling.. Any ideas what it could be?