Hi Seanm
I’m also sorry for this late reply. Perhaps you have weak gluteus medius and/or minimus? It’s not uncommon for this to last 9 months, or more. I’m dealing with it now, and am doing lots of exercises (clam shells, bird dogs, abductor leg lifts, and will soon start lunges, deadlifts, and the like. I hope it’s better, but if not, look into muscle weakness or imbalance. Cheers, Gary