http://www.medications.com/effect/view/31712 Hi, I had mirena placed two months ago after giving birth to my 3rd child. I wish I would've seen this site before I make my decision of using Mirena. My first symptom was chest pain and it was followed by heart palpitations, lower back pain, dizziness, he Mon, 30 Jun 2008 09:00:34 -0400 http://www.medications.com/effect/view/31712?item=9654 hello. I've had mirena in for over a year now and have found the major breast tenderness and heart palpitations increasing over the past few months. I have been on the anti-depressant, zoloft since the birth of my 2nd child as I sadly suffered a server bou http://www.medications.com/effect/view/31712?item=9654