My only daughter started her periods just after she turned 10, about 6 months ago. She is tall and well developed and it's easy to forget she's only 10.
She is constantly saying she is fat and ugly, pinching her (non-existent) tummy and saying she has fat thighs. Naturally, I tell her this is nonsense, and I don't obsess over my own weight or appearance in her presence.
Recently she cries for seemingly no reason and says she can't tell me what's wrong. She is really rude to her grandparents and me, torments our cat when she's bored, refuses to shower/keep her hair clean, her bedroom's a total bombsite - where did I go wrong??? 