Kind of sorta. My "backpain" was actually due to overexercising my quads (front of thighs) from running/jumping with a bulletproof vest on vs. the relatively poor shape of my hamstrings (back of thighs, basically). My physical therapist used other words akin to hamstrings of an 8-year old girl. The military basically had me x-rayed/other imaging telling me: (a) if it turned out to be a bone problem, I would see an MD, … (b) if a muscle problem, I would see a physical therapists, and (c) if neither, then a massage therapist. Pretty basic.
It was indeed a muscle problem corrected by a few months of "lovingly" applied physical therapy (i.e. "do more reps, an 8 year old girl can do more than that…" and other words of encouragement, probably to get me out fast as the govt doesn't worry about billing but does worry about the treatment queue). Doing hamstring curls "cure" on the rare occasions it strikes again (i.e. if I slack off on hamstring exercises) but it is becoming rarer. Probably need to bring some bands on the next week long hike though.