Paranoia

      I think macbeths paranoia is due to the consequence of what he did, duncan is just coming back to haunt him for not telling anybody or even his wife. I think duncan is trying to send clues to his surroundings by making macbeth see him at the party and also haunting lady macbeth in her sleep even though she had nothing to do with the murder. Then again i think its due to his weakness at the same time i think he feels guilty and he's holding to much in so its just catching up with him.