Anyone else?

Ka

So sometimes ill be taking a nap with my baby and I just randomly will wake up to check him. Sometimes I wake up and he has a frown on his face...then moments later he will start crying this really sad cry. I'll pick him up and try to soothe him but it'll take a little to calm him down. He's done this a few times since turning 7 weeks. He's now 8 weeks. Do they have nightmares? Or is he just wanting to be held?