Could Pain In Left Butt Be Due To History Of Constipation And Crackled Bone?

Hello doctor my name is mary iam 42 years old i have a problem in my butts left side i have done my xrays of my tail bone and and my pelvic bone everythings fine but the physio says it must be a trigger point this pain caused me when i was 3 months pregnant i was constipating something crackled i dont know what it could you please answer my query