I was diagnosed in October 2020. Started at 15mg Prednisone. Have been tapering and am now at 5mg. Had my first Pfizer Covid vaccine and everything was fine - just sore arm. Had my second almost three weeks ago. Within two weeks I was having some shoulder pain, some finger joint pain, etc. It seems to be settling down now. Rheumatologist wants me to stay at 5mg until she sees me again in June. Oh and one more thing, I had blood work done last week to checking my markers and my sediment rate had gone up from 22 two months ago to 36...