Cat is getting weak - skinny - and back legs walking wobbly?

We took her to the vet, and they gave her anesthesia because she is nasty. They lost records and thought we were there for a teeth cleaning! They didn't take blood. So they gave her a low dose of it, and got the blood. Found nothing, as described before.

They suggested we give her antibiotics in-case she would have an infection and it could cure it up. It's been 2 days for the antibiotics. She is 6 pounds and they told us .6 ML of the medicine every 12 hours. The women thought it was a lot, and asked around, and said it's fine. Is that the amount she needs? :-/

We don't want to take her anywhere else because she is probably terrified of going there. She is peeing, not an excessive amount, either. She is also eating as well.

When she walks, her legs kind of sway. She got up, and was fine, until my father touched her and then started to walk funny. She isn't walking on her hocks either.

Thank you Becca! Maybe, this medication will help.

Yeah, she kinda walks like that too.