Hello, so I've been having some issues with my left elbow, they were nothing too seriuos, before I started working out the only issue was I couldn't bent my arm, pick a heavy object and then straighten my arm, so I wasn't really bothering about it, but now that I'm hitting the gym, recently i've been hearing some cracking or poping noise while doing some workouts, for example shoulder workout at Smith's machine, and I started to get kind of worried. Is it possible that my joints are damaged? I have never broken my arm by the way. Also there is a sort off wierd feeling like my bones are moving away one from eachother when I left the barbell down, but it doesn't hurt and happened only once.