Hormonal coil (IUS) and negative mood

I've had the hormonal mirena for 14 months now to reduce endometriosis symptoms. My periods have reduced in length (used to be 3 weeks) and happen irregularly and the pain has settled during these. I have however noticed continuous weight gain since I went on it, despite very little changing in my diet and exercise. I've always stayed at a very stable weight and now my breast have nearly doubled in size and my weight in general continues to creep up. I have tried upping my exercise with no improvement in my weight. I'm the heaviest I've ever been, except for pregnancy. It's a huge price to pay for a reduction in endo symptoms. It's very frustrating.

Such a hideous experience for me I went to the doctors to get it taken out ASAP. Had severe mental health dip and felt suicidal which was really unlike me. The pain on inspiration was absolutely awful (removal was easy and painless).

I got the coil after having a failed mirena coil. Tried this one for almost 3yrs and didn't think I had alot of side effects, though reflecting on a time where I was not on contraception, I realised it had greatly impacted my moods and caused quite bad acne on my back, which I had never suffered with previous. I also would get debilitating cramps during my periods again which I never suffered with before. Only bonus was my very heavy periods were light, which made them way more manageable. I decided to get it taken out when my moods were having an adverse effect on my relationship and life.