I have severe pain in my SI Joints on both sides and pain in my spine. I ve had my right knee replaced in 2009; my left hip replaced in 2010; my right hip replaced in 2012, all due to degenerative joint and bone decease. I know have pain in my right lower ribs and the back of my rib cage in my back. I don t understand why I am in such pain. Debilitating pain. I don t know how to stop the pain that seems to be getting worse instead of better.