Tinc lost function in her front right leg

Hi, since yesterday, my adult tinc is not walking properly. She continually stumbles due to her right arm. Is like the arm has not strength or like she cannot control this arm. she has a lot of appetite and she's eating well.

do you know what could be the cause, because I have also another 2 young tincs an a leucomelas and they don't have the problem.

I'm suplementing twice a week with rephasy supervite and zoomed repticalcium with d3 since 3 week ago. before this I used rephasy calcium...

Tinc lost function in her front right leg