I have a Mirena IUD I Have had for almost four years now, I am a bit to say overwieght as well, that is why no one thought except for me that MAYBE there was another problem that I had. I have Edema, swelling of my lower legs and ankles it is horrible, no shorts no short pants no fun stuff! I lived in Jeans over the summers to cover it up. I never thought to think it could be my IUD! Then after being sick and tired of it, I began my search on what maybe else it could be, well imagine my suprise when I discovered it caused my very problem that I must have according to all the docs because well, I am overwieght! I have never had this problem before and have always struggled with my weight. My story is not unique I am sure, if you have this problem please let me know! I am having my IUD taken out next thursday! AND am looking forward to shorts again!