Like a previous poster I find people who can only talk about weight, clothes, make-up, who's pretty, who's not, EXTREMELY boring.

So you can either deal with your sister in a nice way or a nasty way. Your call. But do know this is not about you, it's about her not being happy with herself and taking it out on you. VERY immature.

I overheard some teenage girls on the train the other day and the conversation literally went like this "d'you think she's pretty or ugly? Cos like I don't know. Sometimes I think she's pretty and sometimes I think she's ugly."

It was nauseating and it went ON and ON and ON. I really felt like telling them to STFU and talk about something interesting.

And btw, I'm 166cm and have been 49kg. When I was anxious/depressed and living on a couple of bites of apple and half a sandwich per day because I literally couldn't eat. Now I'm 70kg so a bit overweight. Know what I'd prefer.