hey ,,,,
your paranoia started out the same way mine did cuase most of the stuff you described ive expierienced as well, but mine got out of control and ended up being a thousand times more severe. and i burnt down my dads house becuase of it.
i would talk to a psychologist if i were you, to sort things out and figure out whats real and whats not. some of the stuff might be acually happening.