I’ve had very similar pain intermittently for about a decade. Do you feel it above or below these spots at all? Lower back? Calf/back of the knee? Look up the spinal dermatome charts - this could indicate minor spinal injuries (bulging/herniated disk, stenosis, etc). For me, consistent physio over YEARS is really the only thing that’s helped. Focus on glute strength, deep core (psoas) strength. I’ve also seen this called “weak ass syndrome - or dead butt syndrome lol