Check out the video in this link: http://www.theeggfarm.com/blog/2011/11/02/wry-neck-in-baby-chick-video/ Is that what he was doing??
Not quite - he never has the S curve in the neck. It'a almost like he stands straight up like a game bird but with his chin up - a straight line up from floor to beak, then loses balance/tips backward and "runs" backwards until he bumps into the wall. Yesterday morning he wouldn't bend forward or down much, but today he seems to be better. If someone picks on him, he straightens up and runs backwards, but then can lean forward and return. Good thing he stands in the normal chick position more often than not now..
I think he just got scrambled in shipping and something is "not quite right" with him. I decided to not intervene too much. I'm not sure if he's really eating vs copying the other's pecking motions. (I've only seen him swallow water.) If he grows out of it that's great, but if he ends up being a failure to thrive I'll just let nature take its course. If he seems to be suffering, I'll put him down since I don't really want weak genetics in the flock. (I really hope she gets better and is just "off", and she's really a girl, so she is welcome to live in the layer pen as long as she likes!)