John Watson is schizpohrenic. We already know he hallucinated his dead wife and that it was implied that he had hallucinated Sherlock after his death. So maybe a fic about how John is schizophrenic and he tries to hide it from the people around him. How does it affect his life? Does he see scary hallucinations or does he just randomly see a 6 legged cat walk down the street. Can he tell what is a hallucination and what isn't? Does it effect case, and how do people find out, if they do?