hi, welcome to HCM I am Dr Das
you have fibroadenosis
which is benign and has a good prognosis . but the problems are your age52 and a family history of breast carcinoma .so, first go for FNAC if a lump is palpable otherwise an us guided FNAC should be done. It will confirm you what you really have. because in mammography
many premalignant lesion are mistaken .