I don't know what to do anymore, our baby seems to have suddenly decided to stop sleeping and then goes into an overtired meltdown.
He used to sleep really well at night and be fairly cheerful during the day and now he's sleeping badly and crying all the time.
I thought things were meant to get better at 12 weeks not suddenly fall apart. He had his first set of injections this week but had started doing this a couple of days before he'd had them so I don't think it's connected.
We don't seem to be able to comfort him at all and everything that used to work getting him to sleep is failing. He used to sleep really well in the sling and the pram and now he just cries in both.
What could be causing this and what can we do?