Hi all had a long overdue surgery Thursday 9th on my left shoulder.Question, is I been told for awhile now my shoulder has bad arthritis in need of replacement but too young still the horrible pain lack of ability to move the arm or lift it very much was told in MRI just arthritis they went in to clean it up said it would help. found out I had a bicep tendon complete tear and rotator cuff tear how can this be missed. How common is this? I was made to feel bad about myself and pain tolerance cause this. Anyone else have this ?