They're in your head. If you believe you're bipolar, you will act that way in life. I saw this in a girl yesterday. If you believe you're depressed, you will feel that way. If you believe you're happy, you will feel that way.
Spoken like someone who has never done a single damn thing in their entire life.
Or a Scientologist.
Mental disorders are labels man made to describe different behavioral patterns. It's not like you're born with a certain pattern of behavior that you cannot change yourself.
So there is no such thing as PTSD? So... all the vets, police officers, rape victims, natural disaster survivors are all... umm...
What?