I have had a shoulder problem for over 10 years now. Seems to rev up every once and a while? The first time I had the injury it was sore for several weeks and with stretching and some rest it came good. My guess is that it was something like a tear that has perhaps healed with some scar tissue? Now when it fires up again it will often go away within a week so by the time I get to see a pysio they can't find anything and the tests they run show full movement and use of the shoulder? Not sure if anyone else has a similar injury that returns sometimes? Dips are a favorite exercise of mine but also seem to bring about this shoulder problem every 6 months or so with no reason? It can come about from other types of lifting also. What do you guys think?