Honestly, I didn't know that anorexia is a disorder. And I get it, I mean after 17 years of (I couldn't find the more appropriate word) abuse. The body may start adjusting accordingly and it is extremely difficult to correct that.

And you are spot on with the addiction to cigarette metaphor, The body will start rejecting the change and will cause discomfort and pain which one has to go through if he/she is recovering.

And I guess you know your body better than anyone else.
So please take care and stay healthy and stay happy.

See ya around. :-D