Apart from the bit about the bed incident, you describe CJ's current behaviour to a T. We haven't had any accidents for 8 months or so but recently have had two and she was very distressed, again it was because she ignored the need to go, she knew it but was too busy. She has been talking in her sleep alot, and also coming in to us, but not really wanting anything and quite happy to be walked back to bed - so is not really awake but there is definitely more going on in her head overnight than previously. Tonight she wanted me to cut all her fringe off - just lop it off - I refused she sat there and screamed for 5 mins, really angry screaming, but then snapped out of it and was laughing at how silly she had been. There was something similar to your bed incident but I can't remember exactly what it was but was something that I found her reaction really odd too (can't for the life of me remember what it was now but was something I thought mmm how peculiar).

I have just assumed is a normal part of development.