Pain in left shoulder, upper left chest, and left shoulder blade.I was told that it might be tendinitis. I hear a crackling sound when I turn my head coming from that side of my neck. Any ideas anyone? I have a small osteophyte disc complex on my the left side at c6-7 but don't think it could be causing all these symptoms. There's a minimal impingment on the left side of thecal sac and ventral root ganglia. Thanks for any information.