I can relate to what your going through, but can’t offer too much help. I used to have that clicking noise to, you can feel it click in the top part of your shoulder right? Anyway, I’ve had that on and off for most of my life but I never really figured out what it was. I mean I first noticed it when I was little and first started pitching, but it went away. The most recent time it happened was over this summer when I was pitching suddenly(I went from not throwing at all to throwing seven inning games…not the best idea). But now that I’m on a steady throwing program I don’t really have it anymore. So I would say it will work itself out, if it doesn’t then I don’t know what to say. I mean whenever it happens to me I always tell my dad and he always says “It’ll pass remember last time?” So if you really are worried about it get it checked out, but, for me anyway, it’s just something that happens, but I don’t know why or how it happens.