Was the improvement in my client’s right leg noted just a few days after a single physical therapy appointment actually due to divine healing we requested? Would physical therapy alone make her symptom-free?

You saw intuitively that it was divine healing to cause a very noticeable reduction in symptoms upon awakening from her night's rest. That, indeed, was not a quick and meaningful improvement from just a single initial session of physical therapy, but a karmic repair that was able to effect a timely reduction in symptoms. There is more work to do along those same lines and that is what will bring an ultimate resolution. The PT will not be harmful and will help with some strengthening, but the real issue is karma from past trauma, and the physical therapy will have no effect on its ability to produce symptoms in the body from cellular memory, in particular, due to events in other lifetimes that have been awakened by the deep subconscious and are registering on the physical body as a consequence of inner fear. This is not perceived consciously, but taken quite seriously within that deep compartment of the mind, and having the unfortunate side effect of any fact re-creating a simulation of prior injury and loss of function in her right limb. If you keep going in working on this, we see good things ahead with continued benefit. As you know, such things can take a maddeningly long time to resolve but, as always, nothing ventured, nothing gained, and there is no downside in making the effort, other than your time.