Hello Hun.
I understand that you feel pressure about having that body weight but a thing you have to understand is that the way you are doing will only end up bad. You'll either gain the weight back once you eat or provoke yourself some type of disorder/health complication that might be life threatening.
What you really need to is diet in a way that goes according to the necessities of your body, exercise and take it little by little. Change your behaviors and patters of eating and gradually you can change your weight. I'm sure you don't want to make this effort just to end up realizing what a mistake it was.
The best suggestion I could make is go eat something now, then make an appointment with your doctor and discuss the best way to act.
Seriously you don't want to have an eating disorder and right now you can get help before it get's worst. Personally your weight doesn't seam that bad to me but each person is different. I'm sure you are beautiful and I just hope that with some work and perseverance you understand this. Get some help and get healthy. I admire your determination but the way you are doing is just no the right way.
Good luck and take care. :)
-------
I wish the world was flat like the old days
Then i could travel just by folding a map
No more airplanes, or speedtrains, or freeways
There'd be no distance that can hold us back.