Why does my baby squirm and scream for a few seconds when he’s falling asleep? He’s seemingly comfortable, just dozing as I hold or rock him, he’s almost out, then he will just kinda arch himself either back or forward and squeal for about 3-5 seconds and then close his eyes back and go back to a normal position. He does this when I’m trying to rock him either across my body or laying on my chest. He’s always squirming. He’s 5 months now and he’s done it since he was about 3 months old.