Your hamstring is the muscle that goes up the back of your thigh. I'm not a doctor but I doubt that a pain in the neck is a symptom of a pulled hamstring
I have similar incidents while playing goalie for my hockey team, not easy as I have to constantly turn my head at high speeds to follow the puck. The pain always subsided, though it is a chronic occurrence.
So, this thread helped me a lot incuring it. Thank you to all for such a good thread.
And Blake, I think an elongated neck is more of his worry.