Do I have an eating disorder?

My friends aproached me telling me how worried they are about me and told me the reason I can't see that theres something wrong is because I'm very stubborn. They told me they went and saw the school councillor and she will be comeing to see me after the holidays are over. Is it just there being bored and having a imagination or is there really something wrong with me? They say I've lost a lot of weight, they see me out walking all layered up, they haven't seen me eat recess or lunch at school for months and one of the first signs of an eating disorder is denial. I keep denying it cause it's not true, But I'm not sure if it isn't true anymore.