" To have pain is to have certainty; to hear about pain is to have doubt.” The same was true of all my symptoms, none of which could be seen. In those months I was lonely in a way I never had been before. I could taste the solitude of the human body like brine in my mouth, a taste that never left me. • "

― Meghan O'Rourke , The Invisible Kingdom: Reimagining Chronic Illness