I recently went to the doctor and found out my tumor marking went from a 16 to 69 in one month!!!! I had a bilateral mastectomy ( two years ago), complete hysterectomy, monthly zometa for one year, Arimidex for one year, and started faslodex four months ago. I will be getting a PET scan done next month. I was wondering what it means when the tumor markers go up? My doctor told me not to be worried!!!!! But I AM!!!! Need some help!!!!