Ive been growing a lot lately due to AAS. And I noticied part of my shoulder has been getting weak (hurting a lot). And I think that I read somewhere I needed to work the smaller muscles also. Its hard to explain but it hurts real bad when im like lifting my barbell out of the rack when im benching but then fine throughout the rest of the movement. Maybe I need to work on my stabilizers or something? I just dont to really hurt something and I think I will eventually if I dont figure out the problem