Suggest Treatment For Uterine Fibroid

Recently, I had a vaginal ultrasound because last month I had a period lasting on and off for almost 3 weeks. This included a 2 hour period of time of eliminating some big clots that I never had before. Some days of the period were very heavy, some were nothing at all. I am 46 in two months. Most of my menstrual history has been a little inconsistent with every period starting heavy and with pain and a migraine. My doctor read the ultrasound, a nurse relayed the information saying I had fibroids, one being the size of an orange. This is located posteriorly . Doctor recommends an abdominal hysterectomy or very least abdominal surgery to remove the largest fibroid. If I dont have many symptoms until last month, do I really need a hysterecotomy? More info, so far all pap smear tests have been good.