Short answer
Shorter steps. Heel lands first. The spine does the rest.
The instinct is to take longer strides. That is wrong. In heels, the stride shortens and the cadence stays steady. Each step lands heel-first, transfers to forefoot, and pushes off clean. No dragging, no reaching.
The posture stacks vertically — head over ribcage over pelvis. The shoulders stay level. The arms move naturally. Trying to "balance" with the upper body creates the wobble it is meant to prevent.
Walking in heels is not about balance. It is about alignment. When the body is stacked correctly, the heel does its job and the ground feels closer than it looks.
This is not medical advice. Consult a specialist for persistent discomfort.