My back pain is mostly in that area-the very top of my right buttock. My rheumatologist feels it is ankylosing spondylitis. He had me get my blood tested & there is an HLA-B27 marker that can be an indicator along with your symptoms. I am constantly having to sit with a heating pad at work & alternate sitting & standing at my desk. I do currently take tramadol & cyclobenzaprine as well as lyrica & celebrex since i have fibromyalgia. Its better but definitely not gone. Hopefully your doctor can get you on something to better handle the pain. In my experience, these meds have definitely helped me & i have to take tramadol & cyclobenzaprine daily to keep it at least mostly manageable. But if I do too much standing or bending, like with household chores, it can flare up bad. I have found that i have to sit & rest a good amount of time in between chores to make it manageable. & i cant do almost all in one or two days like I used to. I get done what I can. Thankfully my 19 yo daughter is still at home at least for now & helps with a lot of sweeping & mopping for me. She will start school soon though so I will provably have to find a cleaning service or some other solution.