Has anyone else experienced this? My hips, knees, ankles, elbows and shoulders become very "cracky" when I have a migraine coming on. I also have a twinge in my neck. Usually at this time if I take anti-migraine meds it will not develope into a full blown migraine. I've told every doctor I have met about this and they have no idea what to make of it. Any other migraine sufferers who crack a lot when they are headache-y?