You guys won't like this, but here it goes anyway. I'm 41 I have had tons of injuries that I would just man up and push through. Now I'm paying the price of my stupidity. I had that EXACT pain from that EXACT movement. Forced to take time off and I went right back at it. Your stabilizer muscles were not up to the task and you went to heavy. The reason for the pain with a BB and not a DB? Think of the direction you are really pushing. It is not just up but out also. You are pushing out driving the ball of your humerus back toward the socket. The weight is driving it back. You ARE pinching something. The stabilizer are weak and you stretched the glenohumeral ligaments. It's not just the 4 rotator cuff muscles, don't forget the serratus anterior.
He is the part you won't like. I would need you in front of me to tell you exactly what to do and how to do it, but (check your ego) light weight, 15-20 reps of slow perfect form. 10 seconds rest and right back at 3-4 sets. There is a series to the exercises I do and certain way I do them. I've had many big guys look at me like I'm crazy when I hand them 5lb DB for military press, but I have NEVER had one finish. If you are still interested I can give you more specifics. drugs will help you heal faster, but won't fix the problem. Lighten up for a couple of months.
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