Have always had heavy periods and I am severely anemic .last year I needed blood transfusions as my iron count was down to 3.6 this is v bad apparently. So the doctors answer is a mirena coil to be fitted when polyps are being removed .I have a blood and injury phobia......hate all things medical and I am just so scared have been given sedatives already!!! Should I go ahead ????? Is the mirena coil bad or good what have been other people experiences please advise. Thank you