Have you seen a specialised sports doctor if it is sport related?
I have had hip problems for years since a bad leg injury and was told by various docs and physios and podiatrists I had trochanteric bursitis, a tight ITB and that other one that sounds like a type of coffee...tensor fascia latae or summat, labral tears, having orthotics in my shoes etc etc...they were probably all partly right as I do have significant leg length discrepancy but there was no improvement with all their treatments. Even cortisone jabs made little difference.
It took a specialised sports doctor to diagnose, by MRI, that I actually have osteoarthritis.
Spose what I am saying is hips are pretty complicated and it took the sports doc and his understanding of my particular sport (karate) to get the diagnosis right and ensure I could keep on doing it with minimum pain, although a total hip replacement is inevitable eventually.