I had already had the Shingles vaccine when I got PMR in July of 2024, which I believe was triggered by a COVID vax, IMHO, and only suspected I had PMR but wasn't officially diagnosed when I got the 2024 flu shot. At that time I was in PT for what I thought was a lifting injury but was PMR, and I had seen a modicum of improvement. When I got that flu shot, it kicked me on my butt for 4 days.

Once I got in to see a rheumatologist, I asked about getting vaccines going forward, specifically COVID and flu and he said it wasn't worth it. I'm half way through the tapering process from 10 mg/day and am seeing improvement and my rheumatologist said if I keep progressing through this fall, I can get a flu shot. Now I guess I need to ask about a Measles vax, since it's on the increase - I did have Measles as a child, so maybe I don't need it..... Good luck in your PMR journey!