It is hard to work out the best way of maximizing your chance of staying cancer free. One point that some people don't understand is that your chance of recurrence (the same cancer regrowing in the same breast, skin or muscle, or as you have been told, as a secondary cancer in the bones, liver, brain etc) can be different to your chance of a totally new cancer forming in the other breast. Removing your as yet cancer-free breast will only reduce your chance of a new cancer. It will not prevent a recurrence elsewhere in the body.
Your doctors can give you statistics for your type of cancer which may help you with your decision. If you are after reconstruction information, there is a reconstruction group on here that has excellent information on the various options that maybe suitable for you. Wishing you all the best with your decision. Take care. Deanne xxx