i ve had a mirena coil fitted for about 3 years. Following a smear test where the threads became entangled, my threads are missing. I had an ultrasound and they found the coil saying it was in the right place, but I am having very painful, large clot discharges, which are particularly heavy while trampolining? What are my options and why do I have so many clots and problems now if the coil is in the right place ?