I also had a lumpectomy in 1989, followed by six weeks of radiation. Then in 2000, I had a mastectomy, followed by six months of chemo. I continued to go to my oncologist for follow-up visits every 3 months, then every 6 months, and then once a year. In December 2011, a blood test taken at one of these follow-up visits showed that my tumor markers had elevated, but that alone is not enough to say whether or not a tumor is present. So my onc had me do two more blood test (one a month later, and one two months later), and the TM continued to elevate. So she had me get a bone scan, a PET/CT scan, and a biopsy. After all of this, I was diagnosed with mbc, with mets to my sternum and one right rib, and started on the same treatment you are on in July 2012. It has been almost 5 years now since I've been on Xgeva and Faslodex. No one would ever know that I'm being treated for metastatic bc unless I tell them because the treatments have not interfered with my daily activities. I wish you well as you continue your treatment.