I've been on the IUD for almost 3 yrs, about a year ago I was told I had cysts and that the mirena was almost completely in my uterus, and that therefore was my pain. They fixed the position, and now again I'm having the same pain, but this time accompanied by heavy bleeding, which except for the first few months that I was on it, I haven't had a normal period, I can't get into the doctor until mid April, and this is driving me crazy. What should I do? Or what is going on?