You must be unable to do any "substantial" work (earning above a certain monthly limit).
Prepare a detailed list of all jobs held in the last 15 years , including specific physical and mental duties for each. SOCIAL SECURITY DISABILITY
Collect comprehensive records from the last 12 months, including test results (MRIs, bloodwork), medication lists, and hospital stay dates. You must be unable to do any "substantial"
A strong application is built on concrete evidence, not just a doctor's note saying you "can't work". including test results (MRIs