"Mia calmed down a little, but Gracie did as she always did - arched her back and kicked her legs as if she was trying to get away from me.
"She looked possessed. The glint in her eyes said she hated me, that she wanted me to die. I was close to throwing myself off the balcony."
Sophie, then 21, was suffering from a severe form of post-natal depression (PND).
It was an illness with a heartbreaking and unusual twist: she had managed to bond with only one of her little girls and thought that the other tiny child hated her.
Great, now I have a new fear for when I get pregnant!