confusion, about what is wrong?

Hello, my name is Naomi and i've written this because I need some help/advice.

I don't think I have an eating disorder, but i'm writing this because I need help.

I have had severe eating problems for the last year and since then i've lost over a stone and I need to lose more. I have to eat food with the lowest possible calorie count and I avoid certain foods, now every time i eat something i always feel like I shouldn't be allowed to eat it. Although I have never purged because the idea of throwing up scares me. I am also not underweight although I am borderline. If I have an off day and binge then next day I will eat as little as possible, I know that these are so symptoms of having an eating disorder but i'm confused.

I know this is getting out of hand, but my parents are now literally forcing me to eat and I hate it I need a way of losing weight without them noticing. They are concerned I am having myself ill, I know that I am but I refuse to go to the doctors.

All i'm asking for is some advice on what you think might be wrong with me.

Thank you