I was really excited to see this thread. I have been having a lot of problem with my left shoulder but have been attributing it all to a fall I took last February before I had the surgery. My shoulder/upper left arm was bothering me after that fall (I landed on my left arm) and has gotten worse and worse.
I've also definitely noticed the pain in the front collar bone area when I've overeaten, but I've also had physical therapy and a cortisone shot for my shoulder pain. I finally had an MRI last month which showed that I have tendenitis in 3 different areas, as well as an osteocyte impinging on my nerve. It also says "no complete tear of the rotator cuff" like there might be a partial tear. But because the pain is in different places, and I've fallen twice around Christmas, I didn't connect it to the band, except the pain when I've overeaten. So I don't know where one problem starts and another ends.
I've always begun to have some slight pains in band and port areas. Not sure what that is, but I've lost 50 lbs since May and unfortunately, have been overeating a bit and am stuck there.
This is all quite interesting....