This is so funny. My neck didn't bother me with PMR, but it was incredibly stiff and sore with GCA, and I bought pillows too, just thinking my problem was a stiff neck. I was dying to go to a chiropractor, but really afraid that the quick manuever they do to turn the neck would break mine so I never made an appointment. I had PMR and GCA way before I received COVID vaccines. The booster, just a couple of months ago, did not effect me at all. Now that I have osteoporosis, I read that it is best to use the smallest pillow possible to support the head - so I am using a small worn out throw pillow which works great. Best wishes for a happy and pain free New Year. Teri