Nope, wasn't even the same breast. Didn't feel anything on the other side but thankfully caught it very early. Just one mammogram because that lead me to an ultasound, biposy, and then MRI. I got a yearly MRI for 5 years(which I'm sure is terrible for you too) after I had my double mastectomy, now I don't have to do anything bu self exams. phew! Here's my whole story if you are interested.

https://medium.com/illumination/what-its-like-to-have-a-double-mastectomy-and-reconstructive-surgery-8ba9b68bf3c7