My DD is 8.5m (though for sleep purposes, she is more like 7m as she was prem). She was in a Snuzpod until between 6-7m and then we transitioned to the cot with no real issue. She has always slept part of the night in her own bed and part in ours. I'd managed to push the coming into our bed back to around 4:30am, which I could live with, but recently she has decided she actively hates the cot. If she is put down awake in there, she will scream blue murder - awful, back-of-the-throat, full on demonic screaming. It starts immediately and she can really keep it going. I stay with her and she literally fixes me with eye contact for almost 100% of the time and screams like this, with proper tears as well. It's not very pleasant. If we transfer her to the cot asleep, she tends to be ok and can sometimes be resettled in the cot if she starts to wake but there comes a point where she wakes more fully and the screaming will begin again if she isn't brought out into our bed.
The moment she is out and on our bed, she is all smiles and talking etc.
Why has this happened and what can we do? Any advice gratefully received!