I had the same pain in both shoulders. I went to the orthopedic Dr and he gave me steroid injections three times. Then my thighs and inner hip pain started. Unbearable pain sent me to pcp and he diagnosed me with PMR. I’m thinking I got an overdose of prednisone from the injections and when the prednisone wore off the PMP showed up. I’m doing a lot better now. I have been on 10mg prednisone for 1 month. Fatigue and pain is less frequent. I’m hoping when they ween me off the prednisone it works.