There was a particular moment of perception that transformed me completely. I had had a bone-marrow sampling and a spinal tap during the same hospital visit. Afterward, I was sent home a bit battered and told to lie still for six to eight hours, because moving before the spinal fluid had a chance to regenerate would cause a migraine. Well, it was hard for me to be still, and every time I moved, I was thrust back down on the... Read more