Last October, Mrs. Henderson limped into my office clutching her lower back. “It’s that time again,” she sighed, easing herself onto the exam table. “The leaves change, and my back goes haywire.” Twenty years in practice has taught me she’s not alone—our spines seem to keep their own seasonal calendar, one that rarely syncs with our busy lives and weekend plans. When Your Backbone Becomes a Weather Vane Does Your Back Hurt? We Can Help!…