I had frozen shoulder last summer. My left shoulder was so bad I could not but my belt through the loops. I was a referred to Bob Benner and very talented PT in Watervile, now Oakland and did about 8 weeks of PT with him twice a week. I also followed his recommendations on stretching exercies he recommended and I'm back to 100%. My injury came from lifting free weights incorrectly, I think. So your experience seems to have mirrored my own. A lot of folks would jump too quickly for the surgical option but as we can both attest the PT can resolve this problem. So with upper extremities intact, it's off to caching we go!