I think all the diagnoses boil down to anxiety. That is, an itchy sense that things are not right, a buzzing dis-ease. Whatever doctors want to call it, the feeling is the same: it’s that gut-twisting, grip-from-behind, heart-sinky feeling that winds me in tighter spirals and makes everything go faster and with so much urgency and soon enough I’m running down a steep hill faster than my poor spinning legs can carry me.