My daughter was taken from me, when she was a baby. I had precious days with her. Enough time for me to name her. Then I was rescued by the two most amazing men in my life, my husband held what he thought was his daughter but she was flesh they had taken her. People died for nothing.
The worst thing about having my daughter taken is that she's out there alone and afraid, just wanting me. And I can't help her, I have to leave her. If I get her back who she grows up to be will change. River Song will be replaced by a Melody Pond who was never kidnapped and maybe never fell in love with the Doctor.
I will carry the pain of losing my daughter for the rest of my life.