You are making the assumption that because someone is able to do certain things that there is nothing wrong with them. I look fine, and am usually able to do anything I want. I just put up with the pain. Some days, however, it's much more severe, and I will use my handicap sticker because it's going to be hard enough to finish my shopping w/o adding a long hike in the parking lot. My arms and hands hurt the most, so I'll use automatic doors and such to avoid additional stress. Personally at this point I would never book a handicap room, but if I ever needed a scooter or wc I would, but I would still get around w/o when ever possible, and do as much as possible, even though people might think my dancing meant I wasn't in pain, and didn't have any physical problems.