Agreed I had bad pregnancy symptoms on mirena. ie. breast soreness, nausea, adominal swelling and pain, sensitivities to cetain smells, pain during sex(which I get while pregnant)etc... I just got the mirena out Oct. 27th and although I am not completely back to normal I feel ten times better.
I had the mirena for four years and I constantly felt pregnant.... It's the side effects of the hormone.... I had to get mine removed cause I was sick of always thinking I was preg.... I got it removed in march and seriously you feel a million times better the day after!