My disability automatically turned into Social Security when I was 65. I was Disabled at 45, but at 65, I attempted to work. Worked 30 months. After I quit, it was determined that I lost 4 years of Social Security disability benefits to pay back the 30 months I worked. I do not believe that those 2.5 years were ever added to my work pay to calculate my Social Security, as my payment amount did not change.