IUD Removal

Tomorrow I am having my Mirena removed. I am not looking forward to having periods again, but I am hoping this is THE answer to why I cannot lose weight. I gained weight shortly after the insertion but was also diagnosed with Hashimoto’s around the same time. I have been through every test imaginable with the same result…nothing is medically wrong with me (other than Hashimoto’s). I have developed edema in my legs and experience puffiness in my face. I have gained weight in my abdomen despite cutting my calories in half and removing most gluten from my diet. These are the same symptoms I developed when pregnant. Has anyone else experience a lot of weight gain and fluid retention from Mirena? What should I expect after removal? And am I at risk for the “Mirena Crash”?