I’d try to get checked for Ehlers-Danlos Syndrome…pretty easy if you know the signs. If you meet criteria, I would definitely see about seeing a neurologist for some imaging of your lower spine and more maybe. The comorbidities of EDS should all be looked at if its present and your are experiencing symptom.
A video on testing at home for signs of EDS
A video of EDS comorbidities
He talks specifically about rib subluxation at some point in the video.