I Told My Best Friend About My Eating Disorder?

I think it is good that you let her know. And for worrying about her it might take some time for her to trust you or she just needs a little help bringing it out in the open. I do agree that it is easy to talk about things like this online so that's where I would bring it up. Make sure she knows that your there for her and will not judge her. Soon she should open up but if not go to a trusted adult and talk to them. Even though you will feel like a snitch it might just save her life. Sorry to here about this a good luck with her and your health.