I'm 51 and for the past year or so my periods have been very long, often heavy, very frequent. I have a copper coil (not mirena). The latest period was 4 weeks long, it stopped for a week and has started again. The doctor did a pelvic ultrasound scan some months ago that showed a thickened outer womb layer (adenomyosis) but nothing else was picked up. Any advise? Similar experience?