OCD emcopasses a wide range of symptoms, some more uncommon that others. Depression can also fuel OCD and vice versa. So it can be very difficult to diagnose. I would definately ask about the basis for the diagnosis. Do you have any "strange" habits? For example, I always turn my pillow over before i go to sleep, re-read words a certain number of times, always make sure knives are pointing away from me at the dinner table etc and if so, what compells you to take these actions?