Cat unable to walk after anesthesia

My cat went to the vet to get her teeth cleaned, the vet called that she had a bad reaction (throat swollen) after waking up and then they gave her another dose to put her under again. After picking her up from the vet and coming home she could not walk, she cannot properly use her legs and is even unable to even stand up, we had to feed her holding the food to her face. It is not a balance issue but rather seems to be a motoric one. We picked her up around 10 hours ago and have not seen any improvement. Ive tried to google these symptoms and cannot find them anywhere. Help would be greatly appreciated (video shows whats happening, she cannot move any more than this and also doesnt properly manage to use her paws in order to stand up). Tomorrow I will call my vet (though Im not sure if I want to trust them again since Im afraid that the 2nd dose they gave her messed some stuff up)

She's on the couch unable to get off as Im blocking her way and I will sleep with her tonight to make sure she's alright.

She's 8 years old, neutered female, weight around 5kg, she used to live in a small studio w 9 other cats and we saved her from that situation. I live in Belgium.