I have not had fibrocystic breasts but I was diagnosed at age 39 and never knew I had family with breast cancer untill I tested positive for the BRCA2 gene mutation. If you have a strong family history I cant stress enough that you get a referral for an ultrasound and or fine needle biopsy. My GP missed my cancer for 12 months saying "it is just a benign cyst" untill it started spreading! Dont wait, don't just rely on a GP to make those decisions. Get a referral for an ultrasound. If I could turn back time.