I presume I'd be dying of suicide?
I'd go and sit on the floor in what was my room at the eating disorder clinic and draw hundreds of pictures explaining why I wanted to die and then slip to the day room quickly type a explanation on all the ed forums I ever used and possibly on KMC and KKP aswell. Then I'd go back to my room, call my sister tell her I love her, do the same for my brother and attempt to do the same for my little sister. Then I would tell Ellie (If she was still next door, what I was going to do) Then I'd take an overdose.