PLEASE NOTE : I am already undergoing psychiatric treatment for my OCD and ANXIETY . But lately I have been noticing a new OCD theme , there is a particular perfume smell that I keep on experiencing , and my first thought was - what if this is a ghost ( as I heard someone say that if there is a smell around you , it's a spirit or a ghost ) . At first this thought just came in but then it stuck in my mind . I also realised that it's the smell of my own perfume . But I am still scared with what ifs . Does this OCD theme really exist ? Or am I going crazy ?? PLEASE NOTE : I KNOW MY THOUGHT IS CRAZY AND GHOSTS DONT EXIST BUT I STILL GET RECURRENT THOUGHTS AND EXTREME FEAR .