lack of strength in left scapular region

Need guidance if anyone has faced strength and mobility issue in scapular region. My left shoulder gets under extra pressure while doing upper body exercises. I have been doing rehab exercises. But I still feel sublime / mild pain in this area during and after exercise. I have been working with resistance bands and light weights. Its been a while so I am wondering should I move up and raise the weights even tho I still feel pain in the left scapular muscles after continuous engagement in light weight workouts.