My lower back is swollen on one side, not really sticking out but it seems like there is a lot of inflation between my back and my rib cage, the left side, when i go to the toilet ( number 2 ) my back is really soar, like sandpaper is being dragged down the inside of my back. I am healthy and exersize but this pain is unbearable, i go toilet at least 5 times a day ( not solid ) does anyone know what this is? Ive been the doctor, said its prob ibs but how do i get the pain and swelling in my lower back down?