I use to binge eat and purge multiple times a day, I cut my calories and if I accidentally go over the limit just a little I feel the need to throw up. I also only drink water now and I drink about 18-21 cups a day, that might be overdoing it. I never thought I'd have a eating disorder then it just slowly developed into one. I know I need to stop because im getting stomach problems and my teeth enamel is waring away. How do I stop this?