If you haven't had MRIs if the SI-Joint I would consider that. I limped around in PT for 6 weeks and the world renowned clinic assured me my back was the issue then told they couldn't do anything.. Went down the street to a different Ortho doctor and finally got diagnosed with Sacroiliitis of the Si Joint. I was on crutches a year before get the right doctor that did a number of nerve blocls. I'm still a dumpster fire of inflammatory diseases and can't take NSAIDS...