So sorry to hear you have to go through this. I was first diagnosed in 2007 with invasive ductal carcinoma in the left breast. Lumpectomy, 6 weeks radiation and tamoxifen. Diagnosed again in 2013 with DCIS in right breast and had lumpectomy and sent for genetic testing which came back negative. Diagnosed the following year 2014 with invasive ducal carcinoma (higher grade so not a recurrance) in the left breast and suspicious area in the right breast which ended up being another small cancer. Was told I had to have a mastectomy but decided on a bilateral mastectomy. My surgeon backed my decision when I told him I couldn't go through this again. I was devastated at the thought of losing my breasts but I know it was the right decision for me.
Best wishes and whatever you decide will be the right decision for you.