Help - can anyone explain to me what has happened to my previously happy, smiley baby? Since passing the 14 week mark, DS1 has moved to a default setting of grizzling/crying/shouting, having previously been a very happy little girl. I know she has sore gums, but surely that doesn't make babies miserable for the next two years? Her sleeping patterns have also changed for the worse (up at least 3 times a night now compared to one or two previously) and she seems to sleep much more lightly and is harder to settle. I've read some of the 'sleep is for the weak' thread, but can anyone explain why things change at this point? And can anyone else tell whether, and if so, when things might improve again?