The Mirena IUD is made from silicone. In 1992 silicone breast implants were banned because thousands of women reported serious side effects from leaking silicone including brain, nervous system, and connective tissue diseases such as Lupus and arthritis. I don't think it's a stretch to surmise that Mirena users could be absorbing silicone into their systems from their highly vascular uteruses. Perhaps we're getting a double whammy from the artificial hormone AND silicone. I believe placing a foreign body made of silicone into our uteruses could be producing autoimmune disorders in many of us causing rashes, joint and muscle pain, arthritis, hypothyroidism, glucose problems, etc. Who knows what else it's doing to our brains and nervous system. I happen to be a nurse and I'm mad as hell!!!