Though I am normally very funny, I was not feeling humorous at that moment. On first waking from surgery I just felt the most incredible sense of relief and went right back to sleep. I nearly didn't survive long enough to get to SRS and when the battle was over, all I wanted to do was sleep!
The first really humorous moment came 5 weeks later. I was getting weekly checkups from my gynecologist and asked him at 5 weeks when it would be safe to have sex. He gave me a wry grin and ask if I had anybody in mind. I blushed furiously (I was very shy!) and said I didn't but was just curios.
By the next visit I was no longer a virgin and I guess he could tell because his head popped up mid-examination and he was grinning from ear to ear. I just turned fifty shades of RED. He asked "How was it?" and I just got redder!

Even in retrospect, that first awakening was such a profound experience that I can still not think of anything humorous to say about it.