For the past few months I have been developing a problem in my left shoulder. When I do any type of bench press my shoulder starts to hurt pretty bad. It's not my muscles hurting, it feels deeper, somewhere in my rotator cup. It actual feels like there is something in my shoulder that is preventing it from rotating smoothly. When I rotate my arm around I get this "snap, crackle, pop" sound. The cracking sound has been going on for a while now. The pain is just started to get worse and actually continues hurting after I am through lifting. I am going to go to the doctor next week and see what he says. Has anybody have this happen to them?