He bites my neck or shoulder when I'm holding him. He has 5 teeth now, so it hurts.
When I'm nursing him, he kneads and pinches my skin on my neck or chest. I have several red marks where he dug his little nails in too hard. He used to grab my nose and mouth when I nursed him but now we've transitioned to the neck knead.
It's probably normal but I have had quite a few bite marks and red pinch marks on my body.