I am wondering if anyone else has experienced weight gain with the Mirena coil? I had it put in 2 and a half years ago and have since gained over a stone in weight. My boobs in particular have got enormous! I've also been struggling with low mood and been on sertraline for that but now I think about it, both the weight gain and low mood started shortly after I had the coil inserted. I put it down to perimenopause but maybe it's actually the coil as I always experienced weight gain and low mood on the pill, too. Is this a common thing?