Many years ago, my left elbow became very difficult to move without a very sharp pain, I could only move it very slowly. If it had been my right arm, I would have been in much greater difficulty even sooner. It got to the point where I spent most of the day holding it one position as much as possible. I decided that I had to go to the quack.
"What seems to be the trouble?"
"It hurts when I do this (slowly stretching my arm out)."
"Well, don't do it then!"
To be fair to him, it did eventually sort itself out, but I wasn't very impressed by the "Tommy Cooper" approach at the time...