my sister has severe bulimia, help

Hi,

Since the beggining of the Year (like, january 2018), but it may have started before, idk, My little sister of 17 yo, has Bulimia. She binges like 3 times a day, maybe more, and throw up an hour later. Then I can hear her washing her mouth in the bathroom, and taking anti-acid. (I saw some boxes of it in her room).

And I'm just so worried for her health. SHe's so young, I fear that she'll die from a cancer or whatever. I know we have a very difficult life, and she had a lot of problems but she's brillant and I don't want her to die, or to lost her teeth.

She does this every single days, and I fear the worst for her life. She is very thin, well my mom gives her dietary supplement that she takes. But even with this, even if she doesen't die from an heart attack she'll probably from a stomach cancer with all this acid... I know all the consequences bulimia can have on people, but I think that her illness is worst than bulimia. How can a human throw up everyday? I cry because I'm so worry for her, i don't want to loose my sister

I tried to talk about it with her, but it's hard, she really doesn't want to admit it, and then she cries a lot. It's like, if I talk to her she wants to suicide because she feels bad about it, and if I don't, she'll also die from her illness. Our mom knows about it, but since she also suffered from ED in her youth, she thinks it's "normal".........


I can't sleep, I'm so affraid, please do you guys have advices? (sorry for my bad english It's not my language ....)
Please, help us, I don't want to lose my sister, I have lost so many people in my life, It's so hard to see this....I feel so bad about it.....