Hi there, I have understood your concern and I will suggest you the best possible treatment options. First of all do not panic. I must congratulate you for being healthy and disease free for last 15 years. In my opinion, now you can very well get the mammography screening done after every 3 years. Manual self breast examination should be done by yourself every 4 monthly. If you find any abnormalities of breasts tissue like lump or changes in the breast skin then please seek doctor s opinion at the earliest. Please start on Folic acid and vitamin B 12 supplements regularly. This helps to maintain body s natural cell growth and is shown to be helpful over long periods of time. I hope this answer helps you. Thanks. Dr. Purushottam Neurgaonkar.