Hey Pop,
You will tell your doc when you are ready. And it sounds like you are about ready. I was very obsessive with my weight before being starting medications for my OCD. I was borderline I believe anyway I use to starve my self, binge and purge, etc. and I weighed 115 at that time and it still wasn't good enough. I use to cry alot if I felt like I went off my diet. It was pure hell. Then when I went on the SSRI's, it took a few weeks to take affect, it not only helped my OCD symptoms but it also help to quiet down my obsessions on dieting. Now when I am trying to lose weight I found that it is easier to do it in a health way. Maybe once you get on the right SSRI for some time it will also help with your obsessions on weight. But do your best to get the courage to talk to your doc maybe think about also talking with an eating disorder support group. Best of luck!

Jennifer