I've never been in your shoes and can only imagine how disability adds way more stress to the fear of getting older. I'm 51. 37 seems so young to me now. That said, I get the fear. I'm fortunate to be pretty fit and healthy, but the idea of not being either of those things someday terrifies the crap out of me! I do to dumbest little things, just to check, to make sure I'm not falling apart just yet, cartwheels, climbing a tree, stupid stuff I have no business doing, yet I want to know I still can. It's silly, I know, but the fear is real.