Jim Harrison has a list of writers who committed suicide within a month of finishing a novel. Last I heard, he had 35 names. It goes along with the postpartum metaphor. You've been holding the universe and your body together by sheer will for so long, that when you allow yourself to let go, you tend to let go of everything at once and the results can be messy.
If you go on a book tour, I would advise against behaving like a jerk. The media escorts gossip. With a minimum of prodding, they dish the dirt. Jeffrey Archer is a legend for his bad behaviour. Next most arrogant, rude and demanding are the editors from the Chicken Soup for the Soul series. Think about that.
Fiction writers write a series of lies that add up to Truth. Capital T. Nonfiction writers write a series of facts that add up to a point of view, if you are kind, and a lie, if you are tacky. I write novels, which means my lies are Truth. Bill O'Reilly's lies are lies. Your sanity depends on your ability to tell the difference.
I know you are all on virtual tenterhooks about the state of my colon, so here is the report: As I was lying on the skinny hospital bed on wheels, slowly rising out of the anesthesia, the curtain parted and in floated the angel of the Lord. The angel saith (in a New Orleans accent): "Your doctor messed up. He ripped you a new anal cavity."
If I'd known where Brad Pitt lived I could have boxed up his mail and taken it to him. It would have made a nice icebreaker with Jennifer Aniston. (This was ten years ago.) But I didn't know and I didn't think they wanted the mail anyway, so I did what any other normal American would have done with a pile of unsolicited mail addressed to Brad Pitt -- I opened it.
For much of my youth, I lived outdoors. I figured that's the price you pay for chasing your own dream instead of someone else's. Lord knows, I'd rather write than pee indoors. Nowadays, it's called being homeless but back then it was living outside and was a perfectly respectable way to make time for doing what you loved to do.
I wrote five novels about my problems and then I ran out of problems. I have always thought a novelist with nothing to say should shut up, so I did, waiting patiently for new problems to appear. In the meantime, I wrote screenplays because you don't have to have anything to say to write a movie. You just have to be able to give good meeting.