I had a mirena coil inserted almost a month ago in advance of starting hrt. It was painful and I had quite bad cramping for a few hours afterwards. However almost 4 weeks later I am still experiencing ongoing stomach and back pain. It's quite low level but it's not normal for me and continued even after my period stopped. Is this likely to just go away eventually? I've been on the pill for decades and starting to wish I hadn't changed to a coil if this is going be normal.