To get to the point, I've had an eating disorder for a few years, since I was almost 11, and now I'm 15. It's varied from anorexia to bulimia, but these past few years its centered around binging and purging. For the past few months, I've found blood in my vomit. Its a dark brown and it resembles coffee grounds. I've also been having sharp pains in my abdominal and chest, which usually don't last long at all. Lately, though, the chest pains have been lingering.