My baby keeps turning head

Okay GLOW ladies, I have 2 month old and noticed a while ago(not sure exactly when) my baby turns his head repeatedly even when wide awake and seemingly content. I dont have a video to show but when I lay him on his back(60% of the time) he turns his head all the way from one shoulder to the other shoulder repeatedly and quickly. This will go on for a good minute it seems. Does that sound normal? After awhile he stops and will focus on something or start up again.

I tried googling but found they can self-soothe or are tired. But usually he is happy and sometimes just

woke up. its not a little head shake, its a full turn all the way to his shoulder and immediately flips his head to the opposite shoulder, repeatedly.