I taught school for 18 years in braces on both legs but when I was diagnosed with Post-Polio Syndrome, I decided to give it up & take care of what I had left.
I called the SS office & they mailed me the info package. When I mailed all the info. back in, I received a call one month later saying that I had been accepted for SSD. I was shocked. My Dr. told me that he had a patient, paralyzed from the neck down, that was denied. Now my teacher retirement was another thing. They fought me for 6 months before accepting me into the retirement system.
Good luck & don't give up.
Homebody