There's just something about standing that makes me feel really uncomfortable. When I'm at home I really have no problems, and when I'm walking it isn't much of a problem. But when I have to stand, for example in a line I feel really awkward. Last month I had to go to jury duty (I wasn't selected), and I just remember it feeling really uncomfortable when I was standing outside the door with about 20 other people, waiting to be let in. I don't know why, but it just felt really painfully uncomfortable. I couldn't even turn my neck or move, I just stood there frozen, and I just keep feeling like my arms were really stiff.