This one of the down sides of playing in a band. You can't call in sick, I played yesterday with the flu I was miserable. On top of that we had to stop after our first song and leave the stage and go to seek shelter in one of the buildings at the festival we were playing at. because of a severe storm with hail. everyones equipment was fine. We finished our show, when I got home I listened to some of the songs my wife recorded. I was amazed that my tempos and groove were right on, everything else was awful. Anyone else out there played when being sick. I tell you Its no fun.