that is how I started my eating disorder. I wouldn't eat for a week or so, the I would just gain everything back be pretty much being a vaccuum. I am also a sports enthusiest. I'm also hoping to go to a really good college for softball. But I also know that if I don't get my bulimia under control, then it will never happen. That's what gives me the drive to attempt to stop, even though it is extremely hard. Maybe if you made some type of a goal that you can't reach unless your healthy. So maybe this bad eating that you have won't turn into a disorder. Good luck.