The sensations of my own body may be the only subject on which I am qualified to claim expertise. Sad and terrible, then, how little I know. “How do you feel?” the doctor asks, and I cannot answer. Not accurately. “Does this hurt?” he asks. Again, I’m not sure. “Do you have more or less pain than the last time I saw you?” Hard to say. I begin to lie to protect my reputation. I try to act certain.

— Eula Biss, The Pain Scale