welcome to pc!

I understand exactly what you are going through here. I've battled anorexia since i was 12 and I'm 17 now, recovered for 6 or so months but not doing so well now.

It does seem sometimes like no one understands us, but this forum is full of people who understand and who are willing to help. I think the two worst words in the world are "just eat..." But they are the words of the blind, anyone who says them simply doesn't understand what you are going through...so those words are worthless.

Have you ever spoken with a professional, like a counselor or therapist about this? Also if talking with your sister triggers you, you could talk to her about this. She must care a lot about you, so I'm sure she will readily avoid a trigger like that.

take care...