turning head from side to side

[kidseieio]

i have a 4 day old baby chick, that is plump, fluffy and is constantly on the move. Eating, drinking,sleeping and looks normal. It is however constantly tilting its head from side to side. It doesnt stop for any reason. it doesnt seem to bother the chick, it walks steadily and may be bothering me more than the chick, i have just never seen a chick constantly tip its head back and forth. In regards to hatching, it hatched normally, not too fast or slow, dried off and was on the go, neck is straight and not wry.

thanks