In her harrowing, defiant, and unforgettable memoir, Sarah Ramey recounts the decade-long saga of how a seemingly minor illness in her senior year of college turned into a prolonged and elusive condition that destroyed her health but that doctors couldn't diagnose or treat. Worse, as they failed to cure her, they hinted that her devastating symptoms were psychological. The Lady's Handbook for Her Mysterious Illness is a memoir with a mission: to help the millions of (mostly) women who suffer from unnamed or misunderstood conditions⁠—autoimmune illnesses, fibromyalgia and chronic fatigue syndrome, chronic Lyme disease, chronic pain, and many more. Ramey's pursuit of a diagnosis and cure for her own mysterious illness becomes a page-turning medical mystery that reveals a new understanding of today's chronic illnesses as ecological in nature, driven by modern changes to the basic foundations of health, from the quality of our sleep, diet, and social connections to the state of our microbiomes. Her book will open eyes, change lives, and, ultimately, change medicine.