I've never had any shoulder problems but injured myself several weeks ago and at 56 years old it's not healing very fast.
I've been doing some of these exercises I found on Youtube and thought I'd post a video .
My pain feels like the healing has really sped up .

A warm up, rotating and stretching arms and shoulders for a few minutes, before a practice session seems to work for me.

Good video!, thanks for sharing.

I'm 53 and never have shoulder problems wth my 70lbs bows. What bothers me on occasion is my left elbow. I'm right handed. I pull with my right and hold the bow with my left.