Shoulder issues

Today's strength work at Crossfit was overhead squats. Specifically the max weight you could hold for 15 squats. In all my trials with my shoulder, this has proven to be the move that is hardest to get back to. Holding that bar overhead and lowering into a squat puts a strain on the shoulder you would never know about unless you injured that shoulder. I can do almost every other move, but this one is tough. I think because in the healing process some scar tissue built up giving me less mobility in that shoulder. I ended up doing 2 sets of 15, but it was brutal. Then the WOD had some shoulder work in it. Of course. I really pushed the shoulder today. It's a little achy but not too bad. It really is time to get over it.....