Last two posters... I hope you look at what you wrote and feel even pangs of shame in what you've said.
My ex fiance literally nearly died through ovarian problems and endured a full hystorectomy aged 30. The ability to menstruate is a gift, and though not glamorous, it signifies that you are good enough, womanly enough, to be able to fulfil our reason to even exist on this earth logically; to pass on your genetic legacy and someday be a parent.
You might not want a sprog today, or even this decade, but to purposely want to be sick and stifle your reason to exist in order to maintain a childlike, dying frame when those like my ex had no choice?
I'm not saying I'm better than you. I've had unreasonable thoughts and feelings throughout my ED. But I hope you get some perspective.
You are literally moaning that your body is indicating it is trying to heal and not die, and is giving you a sign to say keep it up, the alternative is a slow, miserable existence and premature demise... And trust me, the frame you maintain in a coffin is plenty skinny.
Think about it.
Keep strong and stay fighting girlies, you know these thoughts aren't right, thats why you posted here so keep challenging them and keep talking to people about your worries, it helps.
All the best.