A-This question cannot be answered just based on this question alone. More information is needed. What type of work were you performing for the last twenty years? Was it sedentary work, was it light duty work? The classification of the job is important.
Did you have any skills that you acquired while on this job? Are these skills transferable to other types of work you can do? You may be qualified to perform other types of work and you may not be eligible to receive Social Security Disability Income Benefits.
However, again more information is needed. What is your age? Are you under 50 years old. Then you may not be able to win the Social Security Disability Income Benefits case. If you are over 50 years old, you may be able to win the Social Security Disability Income Benefits case if you have no transferable skills.
What is your education level? If you have a high school education then the vocational evaluator will state that there is other type of work available for you.
Therefore, just because you cannot perform the job you have been working for many years, or even if you were terminated form this job, you must be disabled from ALL FORMS of employment so you can qualify to receive Social Security Disability Income Benefits.