Failed-fixes section — fixed:
Think back over everything you've already tried. I'd put money on at least three of these.
NHS Physiotherapy. Months on a waiting list, a handful of sessions, a printed sheet of stick figures, and a cheerful "just self-manage it from here."
Deep tissue massage. Felt incredible for about 48 hours, then the tension came roaring back, because massage loosens the surface but never reaches the set curve underneath.
YouTube exercises. Chin tucks, doorway stretches, done religiously for three weeks. Nothing really changed, so you quietly let them slide.
A posture brace. Wore it to work once, somebody asked if you'd hurt your back, and that was the end of that.
A cheap traction gadget. Used it twice, never quite sure you were doing it right, and now it lives under the stairs.
Every one of them was working on the surface.
The massage eased surface tension but left the set curve untouched. The exercises tried to strengthen muscles around a curve that had already hardened, which is a bit like doing bicep curls with your arm in a cast.
The brace pulled your shoulders back for an hour while the set curve sat there unchanged, and the moment it came off, the curve dragged everything straight back.
Not one of them dealt with the actual problem: a curve set hard in the wrong shape, with the tissue hardened around it.
You can't rub a set curve away. You can't stretch it out in thirty seconds. You can't brace your way past it. You have to ease it back gently, from underneath, at the right angle.