Bridging memoir with key concepts in narratology, philosophy and history of medicine, and disability studies, this book identifies and names the phenomenon of metagnosis: the experience of learning in adulthood of a longstanding condition. It can occur when the condition has remained undetected (e.g. colorblindness) and/or when the diagnostic categories themselves have shifted (e.g. ADHD). More broadly, it can occur with unexpected revelations bearing...