Have you gone to PT - I have an osteopathic one, who does adjustments. I broke 7 ribs/2 vertebrae a few years ago, have scoliosis and degeneration. But the stretches really help. The one in groin area for me was hip flexion, which was waaay tight. When I do the stretches, I am nearly pain free, despite what is on the xrays. My pain is often due to foot/knee/hip not being aligned as I am on hypermobility Beighton scale. Orthotics and correct pronation of shoes matters - I like walking in water best as it provides resistence without being load bearing.