Should mention that often one of my legs is shorter than the other. I think it is common and is caused by the hips being crooked. I go to chiropractors and they can be helpful but I don't use the type that crack me especially the neck. I also use heat a lot and have a heated seed belt that I put on as soon as I get up in the morning. I am writing this in the night. My back is hurting so much that I cannot sleep. I must get back to my program of stabilising exercises. Christmas hasn't helped with my routines. One exercise is to lie on the floor, breathe into the abdomen while pushing the back down into the floor. After a few repeats bend one leg towards you one at a time and push against your hand. Repeat both sides several times while still pushing your back into the floor. Sometimes this helps a bit. Then you can lift your head up off the floor and do a partial sit up and repeat several times.