Oh my, you sound like me. I also worry about how I will look in my togs and also how snug I will be on rides and airline seats. I also know how restricting a bad back can be. I'm in and out of physio quite a bit with mine. I know my back would be better if I lost some of the weight. But my weight-loosing exercise options are severely limited because of my back. It's like a vicious cycle. Still, once again I'm making excuses. My back is fully capable of doing long walks and I'm going to need to build up my endurance if I'm to spend lots of days walking around WDW. Your posts are inspiring me and I've decided it's time I put an end to the excuses.