I was riding in the car for five hours. I wasn t the driver, so I slept through most of it. A while after the drive, I touched my left ear and realized it had gone numb. That was 10 hours ago and it is still numb.I am not in pain, there is no ringing in my ear and also my neck doesn t hurt. While in the car, I would awake occasionally, because my neck hurt, so I think I might have slept in a strange position. What is this?