i haven’t gone running since I was probably at pre high school and I haven’t used my bike in for liek a year but I today I woke up with a really mess up left shoulder both on msucle pain and with a gash there and I have no idea what and why is there??? like I coudl understand if was my legs the ones hurted or scrapped maybe even my hip but why my shoulder feel as if I had used it to break down a door???