Day 2 Treatment Update: Slight increase in mobility I think, only managing a few steps, but on her feet rather than her knees/elbows and gave herself a bath in a repurposed cat litter tray.
Haven't been at home so haven't seen her generally, but on trying to medicate her on getting home she did an excellent job at running away from me until she got flustered and got stuck in a bush, but ran 6-8 metres on her feet (albeit staggering a bit) - whether that's treatment working or just adrenaline I don't know, but it was nice to see her moving that much and that fast!