This patient support community is for discussions relating to breast cancer, biopsy, genetics, chemotherapy, hormone therapy, lumps, lumpectomy, lymph node dissection, lymphedema, mammograms, mastectomy, radiation therapy, reconstruction, self exams, and stage 3 and 4 treatments.
It is difficult to say how any given case progresses. However, patients with bone metastases from Breast cancer tend to remain active. The problem in general would be a risk of fractures which you are reducing with Zometa.
Problems would generally be the involvement of other parts of your body. Hence, some of the things to watch out would be headaches, blurred or double vision, persistent nausea (should brain be involved), difficult breathing, perennial cough (lung involvement), abdominal pain, yellowing of skin or the whites of the eyes (liver involvement).
You could also discuss with your doctor about monitoring these problem sites. Monitoring lung and liver is usual practice, not so for brain (as the brain is usually involved later in the course of illness).
Stay positive.