Thx to all who responded.
I'm sure I will probably take the COVID vaccine when available as I am 72 and high risk. If it reactivates my PMR, I guess life with PMR is better than no life.
FYI for those still fighting PMR. I followed my doctor advice with the steroids and gradually tapered down the dosage. After feeling stable on 5 mg, I started alternating with the 5 mg one day and 3 regular aspirin the next day. Eventually I was able to reduce the steroids to once a week and aspirin daily. Finally went just aspirin every day. After a month I was off everything and no PMR since.