Hi - my baby boy will be 8 weeks old in 2 days and has yet to let out a proper smile (though sometimes he seems to look vaguely happy, without smiling as such). Nor does he coo. In fact, apart from crying, he doesn;t really make other sounds. He was born 4 weeks early and also has chronic wind, so he spends quite a lot of time in a bit of pain and discomfort.
Should I be worried about his lack of smiling and cooing? Any information, advice or reassurance greatfully recieved.