Sweetie is there anyone you trust to talk to? You must be under a lot of stress to do this to your body. A healthy weight for someone your height and age would be closer to 120 - 130 pounds. I think you know that you are doing damage to your body by starving it. If you are worried about gaining fat, eat normally and work out so you get muscle. I really hope you will get some help - this is not something you should have to face on your own. No one really looks like Calista Flockheart except Calista Flockheart! If you find eating diffficult try eating soft foods at first like yogurt, cottage cheese, mashed potatoes, cream soups - anything that goes down easily. Adolecence doesn't HAVE to be this painful - please talk to your school counsler or to your mom or your best friends mom - but get an adult to help you throught this! I wish you well.