So this may be totally out there in terms of how to deal with this (which, btw, I think is totally normal at her age, just the emotions of it may be unusually intense combined with her high level of cognitive understanding). But - one thing that occurred to me is that you could use this as an opportunity (if you're comfortable with it) to talk to her about the changes she'll be going through as she goes through puberty etc. We had those discussions with my dds earlier than I'd planned on thanks to an unplanned appearance of one of the AG books about girls' bodies etc.. which in the end turned out to be a-ok (my youngest dd was only 5 when my ds read the book to her - NOT exactly when I'd planned on sharing info about menstruation etc, but it was fine in the long run). I just wonder if perhaps talking through some of what will happen will reassure her that she will grow into a body like yours and that she will grow into feeling comfortable in who she is.

Best wishes,

polarbear