I've had migrating joint pain that has attacked one side of my jaw at a time and this has happened several times. Very painful and stiff, difficult to close my teeth and therefore difficult to chew, and lasts a few days. Fortunately 5 1/2 months post removal these attacks seem to be decreasing in frequency and intesity. I believe this is all an autoimmune response to the silicone in the IUD and hopefully it's going to burn itself out eventually.