I know of the 4 month wakeful but so far (crossing fingers) haven't really had that - though the past 3 days he's been really fussy out of nowhere and we assume overly tired because he seems sleepy but is fighting his naps ---- BUT at the same time gnawing at his hands and anything I put in front of him. He's eating pretty normal aside from taking a bottle yesterday once 2 hours in between instead of the normal 3.5 hours.
Could he be teething? what else could it be?
Re: too young to be teething??
1 in 1 million babies are born with a full set of teeth.
Just thought that I would throw this in for some fun trivia.