http://www.medications.com/effect/view/31535 I am 25 and healthy. I had Mirena inserted in October 2007. In March 2008 I went to the ER with a racing heartbeat. The ECG was normal, i was sent home. On June 8 I went to the ER again for racing heart beat and chest pain. The ECG was normal, I Thu, 19 Jun 2008 20:12:56 +0000 http://www.medications.com/effect/view/31535?item=9317 Hi fayrie i went through the exact same thing i was in and out of the er with the same symptoms the racing heart , burning chest it is the mirena when it was taken out those symptoms went away http://www.medications.com/effect/view/31535?item=9317