I went for a hike today. I took a trail which involved some arm work; reaching out to balance, climb, and support my weight in a few places. There wasn't much of that, but enough to test the arm a little.
I had taken this same trail at the beginning of March, and my shoulder bothered me a lot after doing that. Today, it was a pretty big contrast. The shoulder still hurt some, but it felt much more flexible. That's very encouraging!