WELCOME CHICKLET!!
I'm so glad that you found the courage and energy to post your concerns!! That really is a big first step! Admidtting to yourself that you may or do have a problem is HUGE, and you've done that! go you!!
Second of all, although this will not help, you are not overweight, in fact (I'm sure if I'm wrong someone will correct me...) you are technically underweight. I'm 5'2" and weigh about that, and I'm of "normal" weight...
Skipping meals, pretending to eat, wanting to (or actually) purging...these are all dangerous behaviors with dangerous consequences. I know you know all that. Is there anybody you can talk to aobut this, if not this board is a great place for support until you feel ready to tell someone else. (I have actually only told 3 people...I haven't told my family or any other friends yet...but I have found that the friends that know help me out TREMENDOUSLY, and it is a great comfort to know they are there for me...)
I hope you keep posting and let us know how you're doing!!! I'll be thinking about you and sending happy thoughts your way!!
NEVER GIVE UP
~sarah~