Wow...I've been going through the same things...2 months post. Heart irregularities, dizziness, had my first migraine the other day, anxiety...etc. I never had any trouble before this. I took the mirena out, due to seeing all of the bad reports. I can't believe my Dr. said that the hormone stays localized to your cervix. While on the mirena, I had left sided pain and gained 15 pounds in 1 year. I am happy to see the posts to know that I am not alone, but saddened that so many people have had to endure mirena side effects. Hopefully, it hasn't done any irreversible damage to any of us!!!