Ok, this came up from Lisa's thread about what it feels like to have fibro, but I realized that I haven't read any posts about this symptom both I and my daughter share...which is very audible "pops" that sometimes happen when we move a joint (usually shoulders, neck or back, but it can be any joint). When my neck or shoulders or neck "cracks" then I will feel better for a while. My daughter says the same. Sometimes, I know my neck needs to "crack" and I will try, sometimes for days, to move my head into the right position so it will crack. When it finally does (usually unexpectedly and with no effort on my part) then that area feels much better. I don't think this is related to chiropracty; I went to a chiropractor for a while, but I mystified him (he finally told me he didn't know what was going on with me). Another doctor, when I demonstrated my "musical" joints, looked at me like I was from another planet with a look that said "what in the world in wrong with you?" So I'm wondering: Is this really rare, or fairly common?