Congrats on your recovery!! I too, am feeling AWESOME!! I have been cleaning the heck out of my house too!! LOL! Doesn't it feel wonderful...I think however long you had the Mirena in your body determines how long it takes to get out of your system....think like in pregnancy-they tell you "It took 9 mos.for your body to get that way...don't expect to bounce back in 6 weeks-usually it takes the same amount of time it took to do the damage that it takes to undo it:)" My sister went through chemo and lost almost all her hair and it all grew back and thicker :)
Keep your head up, you will be back to normal soon enough...My thoughts are with you.