I am also a nurse. I believe I had an autoimmune reaction to the silicone with symptoms of RA. I had severe migrating joint pain accompanied by inflammation. After getting the Mirena removed, the "attacks" became fewer and fewer. It took about 6 months for it to burn itself out and I'm free of that kind of pain now. I have high hopes for you now that the evil device is gone. I also believe the Mirena caused my hypothyroidism, pressure urticaria, sinus problems, carpal tunnel syndrome symptoms, bouts of nausea, PVC's, and HTN. Hope you're better soon!