I Have An Eating Disorder

My teeth been feeling sensitive. I can't tell if it's from the puking (although I haven't in a week) or me clenching my teeth at night. Although it can be both. I ate a burger and fries for late lunch because there wasn't anything else in the building I was in, and I wanted to puke it out right away but I keep telling myself not to. I want to exercise tonight it's just hard because I had to study for an exam today an a had classes and work and also have to study for my exam tomorrow and finish hw. I got a small exercise in earlier but I want to get another one in before I sleep tonight--preferably run 6 miles and do some muscle.