Hi I have problems walking, lower back pain which flows the outer sides of my spine and into my neck. My tailbone feels slightly higher than it used to be and when I try to do a sit-up it feels like I am rolling over bones as if they are all sticking out. The tail bone is enlarged as if the bone has actually grown into what feels like a cube in my back. I also have wobbly walking and I stumble somewhat when walking making it very uncomfortable and embarrassing. Physios do not seem to have any idea what is wrong and my GP keeps sending me for blood tests and x-rays which show nothing.