Sorry to hear about your sister. Remember having already read something like that in a more recent post of you. That must be difficult, her not recognizing it. Because of that she might be less (or even not at all) open for help and treatment.

Yes Leah can walk. Not fast, and sometimes using a stick. The surgery that still has to be done could maybe give some more improvement, but she will never be able to run for example.
Haven't been really clear enough about the work I do I guess. I'm self employed and was there for some construction- and fireprotection-kind of work. So no, do not work with patients.