I am not sure how to start a new thread, but I am giving it my best shot. I suffer from Lupus, Si Joint pain, and chronic lower back pain. My pain is so intense sometimes that I just don't know how I am going to make it. My back has been fused at l3 l4 l5. Ever since then my life has went down hill. Currently I have one neurosurgeon saying I need si joint fusion and another saying they don't think that is it. If anyone has suffered from si joint pain could you please tell me if your pain is always one sided or do you also get pain on the middle of your spine at the lower end of your back?