My DD has been an excellent sleeper from the word go really, she self settles within a couple of mins and apart from an odd dummt plug we hear little from her for 11 hours, but the last couple of days as soon as you go to lay her down in her cot, whether at bedtime or nap time, she screams and clings onto you. I have tried cuddling her to sleep and then laying her in her cot, but this hasn't worked and she's started to scream again. We've now basically had to leave her to cry which we've never had to do before and she usually stops and goes to sleep within 5-10 mins. Last night she woke twice and cried but each time was asleep again within 5 minutes but she does sound like the world is ending.
Help! Are we doing the right thing in leaving her to cry. Any ideas what could be causing this sudden hatred of being laid down in her cot?