Man….I feel for you. I had 2 frozen shoulders at the same time years ago. It was extremely painful and debilitating. I did not have neuropathy at the time. Also no heart issues. I do have type 1 diabetes and discovered frozen shoulder is quite common for those with diabetes. This is what I experienced, but everyone is different. You may need something different for your situation. I wasn’t very proactive with health care at the time and just followed medical advice without question. Fortunately, it worked out well for me.

My ROM was limited. I could barely shower and dress myself. I was terrified of disability. The rheumatologist examined me and gasped at my limited ROM. She said Frozen Shoulders! She left and returned with a tray, then injected cortisone in each shoulder without pain. She prescribed PT several times per week, which was quite painful. If I had not had the cortisone shots, I couldn’t have tolerated PT. They helped a great deal with the pain. I did daily exercises at home and slowly regained my ROM. I later read some people are sedated, then the shoulders are manipulated to avoid so much pain during PT. I wish I had that option, as the intensive PT was grueling and painful, but I had no option, if I wanted my ROM back. It took at least 6 months to recover. I haven’t had a recurrence. Although, I did have unexplained sore, stiff, weak leg muscles that lasted for 1 year around that time. I can’t recall which occurred first. It resolved and I never got a diagnosis. That was many years ago too.

I hope you get more responses and are able to get relief from this condition. It’s definitely a huge disruption to your life. Best wishes of whatever you decide. There may be new options for treatment since I was treated.