Ya all of the health professionals compared my left hip to my right, made sure it wasn’t a pelvic or spinal problem, etc. The movement that I’ve always been missing in my left hip is hip flexion and internal rotation. I had a lumbar microdiscectomy 5 years ago and I believe that this missing hip ROM (and ridiculously tight hamstrings) might have caused this injury. I did get soft tissue work but it didn’t do much good.