I empore what mslinzyann said,
I myself am a recovered anorexic, and I have a very long rocky past with it, been through too much bad things and harmed myself badly. I got lucky that my organs seem to be intact and my heart is in a good condition, but it could have been different.
I hope you are not using veganism as an excuse to rule food out and to not eat, for example, in public, I know this is very tempting. A lot of the girls that were with me during my time in an eating disorder clinic were vegan, I became vegan after recovering actually, so I hope this is a move you make to feel comfortable with the luxury of vegan eating, it's wonderful if you look into recipies and find out all the wonderful things you can make and even buy at some health stores/online vegan stores.
If you wish to talk to someone who understand through experience, feel free to message me any time.
Take good care!