Would love to hear more stories about Mirena and Insomnia...

I shared my first post yesterday... thanks to this site and feedback, I'm having it removed tomorrow!
One of my biggest struggles/Side Effects (well, there are a few but I suppose this tops it for general lifestyle interference) has been insomnia. I'm curious to hear other stories.... who's experienced it and thinks it could be Mirena, how you've improved after Mirena was removed, etc.
As I mentioned in my first post, I did go to see a sleep specialist who has helped me a great deal. Of course, I still do experience a few sleepless nights a few times a month (probably a few days b/f ovulation and b/f my period but hard to tell snce I haven't actually had a period since I had Mirena inserted).
I'm also wondering how many think the insomnia also attributed to other symptoms like "fogginess", muscle aches (I have terrible back aches when I don't get enough sleep), general fatigue, moodiness, etc.
So unbelievable that this little "device" can wreak so much havoc!
Thanks for sharing! Tweet