Chiropractor will 1000% make it worse/permanent pain. It may feel better for a very short period but you’ll have to go right back in.

I suggest a massage therapist session instead. They will not damage you. Definitely also do yoga/stretching that focuses on relieving that area.

As for a good pillow… I’ll be reading the comments to see if anyone has a holy grail pillow because I sleep on my side too and can never seem to find the perfect one.