Ever scince childhood I could do this weird clicking noise with my upper most part of my arm just below the shoulder, i think the best way I could explain it would be i can move the bone out of place and if i moved my arm forward it would hit another bone in my arm creating this noise. I thought it was cool to do it as a kid and teen so i did it alot just to show people and see there reactions was fun to do. But the problem is now that it has started hurting whenever I move my arms in certain directions when working as a glass cleaner and coffee maker this is a pain, it has been happening for about 2 years now, and comes and goes and never used to last more than a day just a few day or once a month. But today and yesterday I have had it all day. So how can I go about fixing/helping my arm to stop this?