What happens when you become obsessed by words? What happens when this obsession becomes so severe that your life becomes a frenzied narrative filling your every waking moment ? How do you escape? Verity Sharp meets Tim Parks who shares his experiences of a painful chronic condition brought about by a constant mental and physical tension, related to his work as a writer. When doctors couldn’t explain his symptoms, he was forced to look elsewhere. He didn’t give up writing. He has learned to be idle. Producer Sarah Blunt.