In time, my gynae is going to suggest this I think as part of HRT- instead of taking progesterone tablets, as he thinks it's safer.
I don't get on well with progesterone- gives me lots of side effects including making my bladder tetchy.
I know that the Mirena is not supposed to affect the whole body- the hormones are contained in the uterus, BUT I have also read about women who felt awful with it, and had it removed.
I'd be intersted to know if it affected you, in a bad way at all.