I read the above comments...I went to orthopedics and he took x-ray. He said that you have Bursitis, take cortisone shot and start therapy... I rfeused the cortisone shot and doing therapy from 3 weeks. little better but not at all close to pain frree. raising my arm overmy head still hearts a lot. Dr. also said that if it doesn't get better may do a MRI...I had no problem with my shoulder before that. It's been 6 weeks in pain.