Hello! My five-year old cat has been lethargic for the past several days. She moves very little, eats little (if at all), and overall looks awful. We took her to the vet on Monday; the vet said she had a UTI and some teeth issues. They gave her an antibiotic for the UTI and some fluids. On Friday, we are taking her back for a teeth cleaning (under anesthesia) and a tooth extraction, plus they will make sure her UTI is getting better. Today she looked so miserable, and she refused to eat! I am at a loss of what to do. Should I want until Friday or bring her into the doctor's office ASAP? I left her a lot of water, but hard to see if she's actually drinking. She is using the litterbox and is walking around, although she seems very weak.