I remember reading this fantasy story when I was young. After being tortured, a wizard heals himself and at the relief from pain he groaned. His cell mates assumed he was groaning from pain.
During one of the numerous visits we had in the last week, my friend the PT came over from Idaho and suggested I take some Ibuprofen for an unrelated muscle ache. Later, when I was in the shower I bent down to clean the wall and was so surprised that the pain in my knee was absent that I lost my balance.
I actually thought something was wrong. I took a couple of tentative deep knee bends and found that I was apparently cured for the afternoon. Much to my distinct pleasure I found out that on the next day the pain had not returned.
When last night started coming up I had a mental reminder to take a small dose before class started. I remembered and took some before I went and low and behold I had a great hour which included the ten ryu turning jump into a kneeling position. I could lower myself without a problem. What happiness!
I practiced Koryu a few times and my frozen toe still makes it difficult to come up well, but my knee didn't hurt so I was very happy there as well.
On a side note, I got my blood pressure taken and it was down to 120/80. I've been holding at 193 pounds due to eating well and cutting my drinking down. All in all doing well physically, but I'm due to take another colonoscopy next month. Sigh.