Managing shoulder pain at home with a massage stick

Why do I have shoulder pain?? What causes it to come on?? Is it because I carry heavy loads on my shoulders all the time?? That could be one reason, but often the fatigue from a busy day of work makes the shoulders feel stiff and sore. It would be good to do some stretching or exercises by turning the waist and neck occasionally, but it's hard to actually do it. When someone briefly massages your shoulders, it feels incredibly refreshing. And everyone says, "Why are my shoulders so tense? Why are they so hard and stiff?" Sometimes, I try massaging my shoulders myself at home, and it helps a bit, but it's not easy. So I use a massage stick that I can move around. When I hold it and tap it lightly, it feels very refreshing, and the pain decreases significantly. How about trying to manage shoulder pain by tapping and massaging with a massage stick at home?