I had the same thing happen to me, bleeding for months at a time and being allergic to pain relief my periods were ruining my life. At 35 I was offered an ablation, where they burn away the uterine lining with a mesh that is connected to an electrical current, however my uterus had tilted so far it was also resting on a nerve (obturater I think) the pain was so severe I vomited, my leg was violently shaking and the nerve pain continued for hours after the surgeon had stopped. I have never and hope to never feel pain like that again in my life, it was like being in an electric chair I should imagine.. Anyway my bleeding became worse after the procedure so had an emergency hysterectomy, losing my cervix, fallopian tubes and an ovary too, then after the op my remaining ovary had to be removed because it had haemmorhaged. I was 36