srharder it has been 2 years exactly that i had the mirena removed and heart palps and fluttering were my most scary side efffects have seen two cardiologists i have an extra beat that happens now and again that they can't explain but I did NOT have this before mirena neither doctor would confirm or deny that it was do to mirena..i too also have that heartburn pain that shoots through to my back..any way for those who are having anxiety and other issues i just wanted to say that i have been using natural progesterone cream for the last 3 months and feel more like myself than i have in four years (2years with mirena 2 without)please don't be afraid to try it!! I was on the full dose the first two months and now I'm only using an eighth of a teaspoon twice a day for 14 days before my period and I feel so much better.. if you think about it the reason the people on here feel better when they get pregnant it's because the first thing that happens when the body gets pregnant is a spike in progesterone!