I think of PFB syndrome as an allowance to eb a bit psycho with your first child tbh.
I mean most of the time it's in a 'ah, it's her first, give her a break, she'll wake up with a start like the rest of us did'.
It's normally only used when people are being completely barking and forgetting that, in fact, people have been having for babies for hundreds and hundreds , in fact THOUSANDS of years.
I have to say though I started of a right-hard-nosed disciplinarian beeyatch with my first child and have gotten progressively mellower and more earth motherish with each subsequent one, wtf is that called? (apart from lazy)
oh, in answer to the op. Nope.