Invisible Illness: “People Thought I Was Making My Agonising Pain Up—But I Have Endometriosis”

...I'd go to school each day and last about half a day before the crippling pain became too much and I was sent home. When it became an almost daily occurrence, I started to notice the eyerolls from my peers and even my teachers—they thought I was making it up. Even the school nurses became reluctant to send me home. ...