Oliver Sacks, for The New York Review of Books:

Soon after waking from the embolization—it was performed under general anesthesia—I was to be assailed by feelings of excruciating tiredness and paroxysms of sleep so abrupt they could poleaxe me in the middle of a sentence or a mouthful, or when visiting friends were talking or laughing loudly a yard away from me. Sometimes, too, delirium would seize me within seconds, even in the middle of handwriting. I felt extremely weak and inert—I would sometimes sit motionless until hoisted to my feet and walked by two helpers. While pain seemed tolerable at rest, an involuntary movement such as a sneeze or hiccup would produce an explosion, a sort of negative orgasm of pain, despite my being maintained, like all post-embolization patients, on a continuous intravenous infusion of narcotics. This massive infusion of narcotics halted all bowel activity for nearly a week, so that everything I ate—I had no appetite, but had to “take nourishment,” as the nursing staff put it—was retained inside me.

As usual, Sacks paints a picture with his words. He describes the expected lows, as well as the surprising highs. He’s not out of the woods yet, but there is room for hope. You should definitely read the article.