My neck, RIGHT at the base of my skull on the left side, has been out of wack for about 2-3 months. Been going to this guy since May 1996 and have never had issues with adjustments. Even he is baffled. I have NO idea what caused it. Age?? That crap mattress we got rid of back in December?? Last Summer, I did a LOT of yard work and yard watering in a short span. Constantly looking down and getting dehydrated, I remember my neck being VERY stiff and hurt to look up. It sorta how it feels now. Not REAL sore but I can feel it when I look up or extreme left or right. My Chiro also mentioned stiff joints and necks as a possible Post Covid issue. Said his Wife has had neck issues since Covid.
Old age AIN'T for Sissies!