I have had diabulimia although I didn't know that's what it was called at the time. I still have to force myself to take insulin if I eat a lot of carbs. I actually found out I was pregnant during one of my cutting insulin to lose weight phases, and by the grace of god the baby survived and was healthy... that was the shock I needed to stop. For most of my diabetic life I was passed off as a bad diabetic, most HCPs were unable to understand that it was an eating disorder, not a choice to not look after myself.
I can't think of a worse combination of illnesses than diabetes + eating disorder... but having diabetes makes food very black and white for me, it's either ok to eat or off limits there is no happy medium.
For me the only thing that really works is staying away from the carby foods. Or if I want to have a treat I restrict it to the end of the day and inject a little extra. I've always had an eating disorder, pre dating my diabetes, and always will. I just hope i can get to the end of my life without any more complications.