“When the black thing was at its worst, when the illicit cocktails and the ten-mile runs stopped working, I would feel numb as if dead to the world. I moved unconsciously, with heavy limbs, like a zombie from a horror film. I felt a pain so fierce and persistent deep inside me, I was tempted to take the chopping knife in the kitchen and cut the black thing out I would lie on my bed staring at the ceiling thinking about that knife and using all my limited powers of self-control to stop myself from going downstairs to get it.”