I have the same pain that you describe. I especially can’t twist to my left. Did your pain come on suddenly or gradually? Mine happened 2 weeks after a minor decompression surgery that absolutely fixed my right side sciatic pain. I felt so good after 2 weeks that I went to the gym before I even started PT and messed up my left side. Mine is also in my left SI joint area with major pain in my glute and upper thigh. It has been 7 months since the injury with very little improvement. I am 57 years old. I also had a clean mri and am in PT again and had 2 shots in my SI joint and a trigger pressure shot in my glute. I ice daily and will take advil if I have a busy day planned to help a little. I’m trying to hold off on any implants as I really want to get back to playing baseball, but I am interested in your results. Please keep us updated.