So I have been playing Osu for over 10 months now and I'm pretty good, I have never had this problem before but lately when I have been playing Osu my biceps and right hand will start to hurt, I have loosened up my arm and wrist during songs and I have even moved my mouse to the top of my desk so it's no longer next to my keyboard and is almost behind my screen but nothing has helped. I have been pushing myself to my limits by trying to play harder songs to practice and get better but now even if I play 2 or 3 star songs my arm hurts, sometimes it doesn't hurt when I play 3 star songs but after it I get an S or an SS rank but after that I become really shaky and am unable to play without my pinky on the desk to stabilize my hand and stop it from shaking but this really hurs my fingers, Any tips to help this stop please it's very painful and I can't play Osu anymore without it happening