How did you injure your shoulder and what did they repair - was it a rotator cuff injury? I have frozen shoulder and had it 3 yrs ago too. I just finished my 3rd cortisone shot - the 3rd improved my condition but now 2 weeks later the pain is getting worse. I'm doing the exercises but I'm getting discouraged. It's the worse pain I've ever had and I had both my girls natural child birth lol. Like the others said - keep up with your exercises to keep the mobility. I hope you feel better soon.