My 14 week old boy has always been a really calm, happy and contented baby. Since about 7 weeks we have been in a great routine of feeding 4 hourly (bottle), 3 daytime naps and then since 9 weeks he's slept through for 12 hours each night.
To get him to sleep we used the baby whisperer shush-pat when he was a few weeks old but since 9 weeks he was happy just to be put down in his cot and would fall asleep on his own within 10 mins.
For the last week he has totally changed. If I put him in his cot awake he screams until I pick him up again. His long afternoon nap has been disturbed for the last week, with him waking up and either needing cuddling back to sleep or not going back to sleep at all.
He is grumpy when awake and often gets overtired because he fights his sleep so badly.
I don't think he is teething but he has been pooing a lot less, every other day rather than every day and the poo is quite firm so think he is a little constipated.
I don't know how to get him back to his easy going sleep ways. Any advice or experience of this?