Can someone please tell me if i have an eating disorder or not? :)?

well about 2 years ago from now i stoped eating and became anorexic, it was a very gradual process and the weight slowly came off until i got severly underweight. I went to a dietition and slowly got up to a healthier weight. i was soo happy with the way i looked.About a year ago, when the summer holidays began, i started binging, and then dieting to try and make up for the binge. i have been doing it ever scince and i hate it. i hate the way i look and i badly want to get back to my skinny self, not under weight but thin! its destroying my life!!! any one know whats wrong and why i cant stop? also any suggestions on how to syop? that would be great. thanks! :)