OA in shoulder
Hello, I'm 47, I climb regularly, and I've recently been diagnosed with OA in one shoulder. My GP says it will have been caused by climbing. But the puzzling thing is, whilst lots of everyday activities cause pain in the affected shoulder (walking, standing with the arm dangling, using computer keyboard, hoovering...) climbing doesn't make it hurt at all. This doesn't make sense to me (or to my GP!)... if climbing has caused the damage, why doesn't climbing hurt? Anyone any ideas? Thanks for any replies!