Warm water helps but our local heated pool has such cold dressing rooms my back goes into spasms and my back goes out of place. Walking is hard in the winter in the country and I can't justify going 24 miles for a warm place to walk. I have a walking machine with a belt on it (having a fibro moment) and a staionary bike but I hurt so much and it takes all day to do my housework and nap so I don't feel like I can justify the time. Do floor exercises such as stretching help? I have very poor balance and get light-headed if I do stand-up exercises.