Not sure if I am over doing things a little here but, I have been back training for about 2 months now, anyway what I am finding is my shoulders seem to be or have got quite weak. Hard to explain, itís not as if I donít have the strength to say bench press, 120lb or so for 3 or sets, 10 or 12 reps. Which not a fantastic weight anyway! What I am finding, is after about 2 sets, itís as though my shoulders start to be very painful, not muscles itís feels like the joints or bones, itís almost like they collapse, like they canít take the weight, no strength. And when I get home, if I were to sit down, and even use an arm to support my weight while I turn around, itís painful! Any ideas, what going on here please. After say 2 days it's gone, but when I get back in the gym, very shortly it starts all over again.