Over the last few weeks, I seem to have lost my ability to bench press correctly. All of a sudden, I seem to be really feeling it in my shoulders, and feeling it less in my chest. Everything about my form is the same as its been for the 3 years I've been lifting, and I've only had this problem now.

I tried using a wider grip and somehow it only makes my shoulders feel it more. It's hard to explain, but its like all of a sudden after my last few chest workouts I feel like I just did shoulders. Like after every set now It feels like my shoulders did most of the work. And the only real part of my chest that seems to get any pump or soreness going is the area in the top corner closest to the shoulder. What the hell is my problem?

It might be mental, like when you first start working out you don't know how to "focus" on the muscle you are working. Maybe I forgot how to press using my chest? lol, I dunno. Any ideas?