Dd has always been a reasonable sleeper.
She likes bedtime. She generally sleeps though - maybe wakes a couple of times a week, and usually because she's thirsty, has lost her comforter or got cold outside her duvet - understandable reasons. Can generally get her back to sleep within 10 - 20 minutes, either by fixing the problem or cuddling to sleep if there's no discernable problem to fix.
She comes into our bed if she can't settle and generally falls straight to sleep and one of us lifts her back into her cot when we get fed up with having no room.
Suddenly she hates bedtime. Won't go to bed. Takes hours to settle. Wakes all through the night. Won't sleep in her cot, in her bed or in our bed. Hates daytime naps. I'm at a loss to understand why.
I've generally taken the approach of putting her to sleep when she's tired, and I won't force her or leave her to cry.
Is this just One Of Those Things? A phase? Have others done this and (most importantly) come out the other side? Or is there something I am missing? Something I could try?