Hi again,
It sounds great with liquid calcium supp. and D3 vitamin, which they need to be able to uptake calcium properly. Normally, they produce enough D3 themselves (UV light is needed, among other things, to stimulate D3 production). So once your girl gets better, you will only need to add...
The weak grip of the front legs can also be an indication of a starting calcium deficiency, which she is quite likely to have if she came from a pet store. As mentioned before, pet stores are not always aware of the special needs these wonderful creatures have.
So, does the supplementation...