She doesn’t let anyone see what she’s going through. As an advertising professional, she used to work 20-hour days. But fibromyalgia—a medical condition that’s neither visible nor forgiving—ended her career. The condition causes unbearable pain that never goes. A malign sideshow torments the patient: insomnia, hypersensitivity to light and noise, irritable bowel syndrome and many more nettling symptoms in myriad combinations. So many, in fact, that it is the diagnostician’s ‘dustbin’ disease—when every possible disease associated with the symptoms has been ruled out, it’s fibromyalgia. Every patient exhibits these symptoms in different magnitudes and combinations. Depression is a common, unhelpful accompaniment. It’s a disorder of the central nervous system (CNS): transmission from nerves to brain is affected and results in pain in several parts of the body at the same time. Often, doctors initially take the symptoms for rheumatism, arthritis or other orthopaedic diseases. For some reason, 90 per cent of patients are women.