Have you had your sinuses checked? I wonder if the mirena cause sinusitis causing a feeling of lightheadedness. Today I had my lung function test and they said there were some problems with my lungs and that my airways in general were reactive. I responded well to albuterol. I remember seeing in the physicians literature that mirena could cause upper respiratory problems. Now the breathing issues may have caused the numbness in my limbs. I remember the paramedics telling me that was so when I my son called them for me. Why it would happen 6 months from removal I don't know unless your hormones are triggering one of these things and causing a domino effect?