You grow ravenous. You run fevers. You know exhilarations. You can't sleep at night, because your beast-creature ideas want out and turn you in your bed. It is a grand way to live.
When my first book came out, it was very disorienting. My health went south. I didn't know how to relate to people. I thought, "Now I have this way to be in the world that's going to be wonderful. It'll be like driving a great car, really streamlined. " But it actually was difficult because, if you have a public persona, something you don't fully have control over, it's more like being in a car with controls you don't really understand.