I have severe lower back pain which radiates to my legs causing pain in knees and even toes. Upper back along with shoulders also seem affected by it. I feel the pain even while I am asleep due to which I am unable to sleep properly. Sometimes, when I turn while sleeping I hear my backbone cracking(sound like knuckle cracking). I even feel numbness in my arms and feet at times, which doesn't fade easily. I also got an x ray done but it turned out to be normal. Have been taking muscle relaxant and pain killers but even they don't seem to help much.