My 13yo DD has recently started saying she thinks she’s ugly and fat and feels sad because of it. It’s only started in the last two weeks or so and I think it may have been prompted by spending too much time on social media in lockdown looking at people looking perfect. She is tall and slim, not fat at all. I have told her she looks beautiful and is very healthy but I really don’t know what to say for the best and not to make it worse. I told her I understand that she’s feeling upset but that I think she’s not seeing what others see, a beautiful lovely girl. She’s only just turned 13, could it be a phase? Or a warning sign that I need to do something about it? All advice gratefully received.