I spent 45 minutes writing a response to your post, and kept reading and re-reading and then I realized that my reply was way too complicated. Whatever your disorder is, anorexia, bulimia, CED, BED, etc. it doesn't matter.
I'm also a second year nursing student who suffered from anorexia from the ages of 15-22. (I'm now 36). I think the most important thing to realize is you are NOT alone!!! I was in two inpatient programs for anorexia when I was a teenager, and while the staff was amazing, what I remember was the feeling that all of the really isolating feelings I was having weren't unusual.
You wrote in your post that "I feel so alone in this", and I don't think it has to be that way. Look for support groups- they sound cheesy, but it's amazing the strength you get from listening to people who had the same seemingly debilitating issues during the week that you did. As far as your role as a nurse, the argument can be made that since your health has not yet been compromised, the care will not be compromised. What I'll say is, that you're going to be an amazing nurse, because just in posting your thread you've shown amazing care and commitment to your profession. Please, don't let the irony be that you care so much for others and so little for yourself. The issues of control and the feeling of "voidness" need to be addressed, and I would say fixed, because you, like so many people battling various eating disorders, are complex, intelligent and remarkable people that deserve to give themselves a chance to be happy.
You spend a lot of time in class figuring out how to teach and advocate for your patients, so try and take time to do that for yourself. You deserve to be 100% for both yourself and them.
I hope the very best for you, and I hope that you're able to heal yourself the way you'll heal others!!:kiss