Dear worrywart1031: If your breast workup from 6 months ago was benign, it is unlikely that you would have metastatic disease now. Of course, until the testing is done, it is impossible to speculate on what these things could be. In cases where breast cancer does metastasize, it is not usually specific in terms of sides of the body or specific locations. It often seems fairly random. When breast cancer spreads, it is common for breast cancer to spread to the bones, lungs, liver and brain - and there is no way to predict which organ. Most of the time, when people have regular checkups and mammograms, they present with early breast cancer rather than cancer that has spread.
What was your staging diagnosis?