Sciatica has more searches behind it than every professional term combined, and the person typing it is in enough discomfort to book the same week. A page about the symptom outranks and outsells a page about the clinic.
The comparison search is real and worth answering. Someone weighing up two professions will book with whichever one explains the difference fairly rather than dismissing the other.
Desk work feeds a constant stream: neck stiffness, shoulders, headaches that start at the base of the skull. It has no season, it repeats, and the searches are barely contested.
Pregnancy-related back pain is a small, high-intent niche. It is searched with real worry attached, and a clinic that explains what it can and cannot safely do gets those bookings almost unopposed.