Pulled a Muscle

As mentioned, I started playing racquetball again...or at least I thought I had.
I was just into the first game when twang...something happened. I could not even turn to swing the racket.
Dave, my playing partner asked what was up and I said," I think I pulled a muscle..." But I did not know for sure cause I do not think I ever did that before.
Right under my ribcage on the left and it only hurts doing very specific moves...like sneezing and last night I reached over across the bed to turn off the light, apparently reaching too far.
Anyway the doc said to take two weeks off.
I was able to run regardless and got in over 13 miles on Saturday.
Felt pretty good doing it too, though when I got home and checked the time it was slower than I thought...big surprise there...hah.
So the long and the short of things is It Sucks to Get Old.