I am 34 and very active healthy with 3 children. I have had the Mirena in for 4+ years and just the past month have discovered i have very high blood pressure and am wondering if this could be a side effect of the mirena. Has anyone else had this reaction? I have been to the ER 4 times the past month and they cant figured out what is wrong with me. Its very scary because i am almost passing out some days... :(