Hi Margie. I was 39 at diagnosis, no family history. My cancer was 3 tumors, stage2b and very aggresive so mastectomy of affected breast was advised. I too wanted the healthy breast removed at the same time but my sugeon refused and I accepted. 12 months later and after treatment ended i did go for genetic testing and tested positive for the BRCA2 gene mutation. Needless to say, I then had to go back to have the healthy breast taken off (annoyed because I could have done it all in one surgery so just didn't want the extra surgery but knew I was not taking a risk). I also ended up having a full hysterectomy to reduce my risk of ovarian. If I could turn back the clock I would have demanded that the healthy breast was removed from starters, just because I was so young and wanted to reduce my risk full stop. You should stick to your guns if this is what you want. The possitive of a double mastectomy apart from reduced risk for recurrence is also the outcome of your reconstruction and aestetics of doing both breasts together. All the best with the rest of your treatment.