Quoting Kait.:" Okay, that's what I thought. My elbows, wrists, ankles, fingers, and knees all crack and cause me pain. ... [snip!] ... but I do know it can cause bone cracking and such and I also have kidney and bladder problems so it just worries me a little. "
Quoting I ♥ Jack & Amelia :" Well, then I would start with an orthpedist, but sounds like you need to see rheumatology as well!"