I am currently in PT 2x/ week for the past 10 weeks for as you describe severe buttock pain which made it difficult to sit through a dinner without ice packs and getting up frequently… difficulty sleeping as diffuse shooting pains occurred down my thighs/ groin…( mri short version showed hamstring insertion fraying/ degeneration moderate gluteal tendinitis;bilaterally; bursitis; DDD labral degeneration) currently being treated at PT with cupping and dry needling w/ electrical stimulation.. very painful but is definitely helping me.. has added basic strengthening exercises past several weeks- I had to stop all conditioning exercises except walking these past 2 months..(history:I had had a hip replacement 3 years ago leaving me with a Miriad of issues & 1/2 inch leg length discrepancy..) I have had chronic SI joint issues for over 20 years- have had SI joint injections.. have had chronic neck pain since that surgery : have had a multitude of steroid injections with no help… meds like Gabapentin methocarbamol meloxicam tramadol help… but look into cupping & dry needling… may be helpful?