I have no medical knowledge, but I'd back off a bit on the heavy shoulder lifts for a while (not necessarily stop, but do them lighter) and add in some rotator cuff exercises.

LYTPs?

Really you should probably check in with a sports doctor or something though; I find the LYTPs good for keeping my shoulders healthy but depending on what your issue is they might not be what's good for you and you don't want to make things worse either.