Call me crazy, but I seriously think I may have had a heart attack today. Yes I should have went to the doctor but I wasn't 100% sure it was a heart attack. I just got on mirena May 6th and haven't ever had any issues before with my anxiety let alone feeling like I've had a heart attack. Two weeks ago I had that anxiety attack so big that I thought it was a heart attack, pushed it aside because I'm 21, who has a heart attack this young... the past two nights I've had such bad heart burn that it's woke me up, then today out of no where I thought I was having another random anxiety attack (I've felt fine all day and I ate, nothing that would trigger anxiety) but my mom thinks I had a heart attack because all the everything I described to her matched my dads heart attack perfectly. Like I said I haven't had any serious issues like this before I got mirena. So if anyone else has experienced this while on merina I'd like to know.