So we popped to gym and got stuck into "lifting and pulling things" exercises. On the lifting above your head that I do without any weight 1) I was able to lift both arms equally for the first time ever and 2) I was trying it with some weight, I managed to do 6 of the 20 scheduled lifts with 2.5kg. It's not very heavy but I didn't used to be even able to lift my arm up fully etc