I feel really sad for you right now.
We all question, did we do anything wrong or could we of done anything more, But we can only do our best, and with friends and help we all try harder. But some times there is not a good ending. So to look forward now and hope the little ones will make things easier.
My last female died at new year, showing the same signs as hibernation (just like Camille) As she lived outside i never picked her up, but this day i carried her in and sat for over an hour with her lying on my chest, watching her breath slowly and cold to the touch, I put her in a small container with hay and a towel to keep her warm, but she passed away an hour later. I thought it was because it was very cold this winter. But after reading about Camille, may be it was just her time to go.
remember the good times.
Sarah.