Need Help Real Fast

i am 22 years old and for some reason i was diagnosed with having aneroxia, the problem is, i didnt mean it!
i dont think im fat, im no way trying to lose weight or be a size zero or anything! it just kinda happened.
i was working full time and had my horses and i was always too tired too eat, i would just sleep when i got home.
obviosley after months of doing that, i lost lots of weight abd begun to feel the effects and get very poorly.
my girlfriend was very concerned so we made an aim for me to eat 2500 calories a day, everything recorded, but with all the stress of that, i started having panic attacks that i was dying, and i was scared that i was going to die because of this.
i ended up selling my horses and quitting work to work on my health.
its now a year later, and i eat 3 meals a day ( good meals ) as well as a 300 calorie drink before i sleep.
however, im just not putting weight on!
i have never had much of an appetite my whole life, and have always been the tall skinny girl, but now my girlfriend is worried again as my bones are still poking out.
i dont want to be like this!
how can i put weight on easy? how can someone with a small appetite but weight on?
im finding it a huge struggle to get to 2500 calories a day, as its a lot of food! i have no fear of food, i am desprete to be a size 10 or 12 or above! ( im a uk size 8-ish )
please help! does anyone know any magic??????? please i beg of you.
thank you.

Hey,

I can sense your frustration here and it doesn't seem like anorexia. Even the way you've phrased your post isn't like others here from genuine anorexics. As a person who is also very devoted to working and such, I know only too well how easy it is to skip meals by simply forgetting about them. Why exactly did you go to the doctor in the first place? - was it just because you were looking frail and/or feeling a little depressed? In any case, have you ever thought about OCD? I think that OCd could be something you have. I was diagnosed with OCD and seem similar to you.

Kevin