<human>: Our cat is a little older then 7 and she is normally very talkative, friendly and just overall cute. She just happens to have diabetes and we are giving her insulin 2 times a day and always have a full bowl of water and food for her. A couple of days ago we began to notice that she is having a hard time walking without staggering and doesn't eat her food and barely drinks her water. We took her to the vet but we can't get a lot of tests done on her because we are broke college students and the visit itself put us back more then we hoped and they don't have any form of payment plans to assist in the rehabilitation of our cat. They gave her fluids and anti-nausea medicine but she is still in as rough shape as she was before and were afraid she might die. We really don't know what to do =[. Have any of you experienced anything like this before? The vet said if she hasn't gotten any better to give her antibiotics starting tomorrow. I really don't know what to do here. Please if you have any information about what might be going on tell us. She is fully awake and looks like she is aware of everything just her body is going to shit on her.

Summarize the given text in a few sentences.
<bot>: Cat has diabetes and now isn't eating and barely drinking and body is having a hard time walking or doing anything. Can't run expensive tests because we have little money. Help!!!