I was reading about obessive compulsive disorder the other day, and learned that most people that say they have OCD dont have it.
It has to be diagnosed, I have it and its a mental disorder.
Oh really? what are your specific symptoms? I find OCD fascinating. 
I have certain routines i do over and over called rituals\ and I constantly check things like is the coffee pot off, is the door locked.
Oh I do that stuff too, but I didn't figure it was OCD. I check and make sure all the doors in the house a shut at least 3 times before leaving
I am unable to control my thoughts or what I do as far as rituals for more than a half hour, seriously
Oh that sounds terrible. I generally just get really bad anxiety about it if I leave the house without double checking. How do you manage your symptoms? 
I don;t manage them and that is the problem. I constantly wash my hands , count things, check locks
Oh maybe you should go a see a doctor or therapist if you are having that much trouble with it.
I have seen several doctors and the cause is unknown