As I’ve mentioned, people come to the “sitting disabilities” camp from many different directions. A fellow upright, Linda V., alerted me to this blog post, which she wrote in 2015. I’m impressed by the creative solution she found to the anxiety-inducing ordeal that is air travel. She put herself to work. This might be my own insecurities speaking, but when I’m in public places I often worry about how my weird behaviors will come across. When I stand to avoid pain or beg flight attendants for a spot in their prep area, I often worry about coming across as demanding…