Last week i had a flu. Now i have recovered but only have some cough but i don't feel tired, so today i decided to go to the court after 1 week. Despite i didn't have any problem with my movement or energy levels, i clearly had the worst game of my life. I was so useless that my coordination was totally broken. I couldn't even hit the ball with the sweetspot, my whole direction control was lost. I wonder if the sickness effects your hand-eye coordination or i was just not in the mood and had a bad playing game.