@kirstenheld I had similar pain in left hip and lower back and did a lot of PT to no avail. I finally saw this great ortho (not a surgeon) who showed me the x-ray and how a bone spur was sticking out. When I lie down it presses on a nerve and/or muscle and then the pain radiates for a few days. Don't know if this is helpful. I am trying not to sleep on that side!