No, I've had a lumpectomy but it was simple, like the surgery you described. So I am not doing anything and am not worrying.
If I had the infamous gene in my family, I'd do a double or even single, but my dna does not match. Yay!
It's up to you.
Personally, I go by the motto, "If it's not broken, don't fix it."
And I'm wondering ... since you first said you were certain, and now you're not certain...
Wish I could be of more help.
