I receive social security benefits for almost 15 years. The initial amount of my benefits was about 350 $ (now 470 $). I also receive my foreign pension nearly 750 € since 2005. I never reported this fact to social security. Now I learned that this pension affects my social security benefits. Do you know how much approximately my benefits will be reduced if I report my pension and what happens with the overpayment ? Am I forced to pay back for all these years or there is a more restricted time period for this ? Thank you.