Could you just simply ask her out of mere curiosity sometime "which Dr. diagnosed you with OCD? I can't seem to recall." Then...if she tells you then inquire about what they did to evaluate her etc. It might lead to an opening where you could say something along the lines of "Maybe you should get re-evaluated...sort of a check up, make sure the meds you are taking are still accurate....it might help ease the pressure you are under." I don't know, that's just a thought....but you can see what I'm getting at. Approach it in a manner where you appear concerned for her, yet not blaming or pointing out flaws.
