Please note that the SI is the sacro-illiac joint and is above the hip. Sometimes it is difficut to determine if the pain is coming from the spine, L5-S1, or from the SI (sacroilliac joint). You might consider an injection in the SI joint to see if that makes a difference in your pain level. You would need to determine if your pain is on the R side or the L side before considering such an injection. Good luck in figuring out what is causing your ongoing pain.