Also Texas
https://www.mennoniteusa.org/menno-snapshots/measles/
I think in Canada they’ve been trying to reach people to remind them the church doesn’t forbid vaccination, but they’re not exactly recommending it, because freedumb. And also general distrust of the government. That community doesn’t have a lot of education and they speak Plattdeutsch so it can be hard to reach them.
If you are able, consult a soft tissue medical professional in your area (physiotherapist). They’ll be able to do a more thorough diagnosis than your GP. There’s some significant discomfort that can occur if muscles develop tension and run on nerves, to oversimplify.
Getting ahead of it - chiropractic is a scam.