Veterinary bills for Belle

I really never thought i would be filling out a go fund me, but here I am. We have two cats, our youngest, Belle, is about 18 months old. She started acting strange and not running around and some other issues I will spare you, so we took her to the vet, she tested positive for a UTI, we got antibiotics and brought her home with instructions if she wasnt better in 2-3 days to come back. she was eating some and seemed much better and wasnt having accidents or issues. after 4-5 days shes eating less and very lethargic. So when giving her her antibiotic shes drooling a lot, as well so we get her to the vet right away, and after some blood work she is having bladder issues due to lack of eating. So they start her on an IV and run tests. She really needs an IV overnight and 24 hr care for a few days for her best chance to recover. We have spent the money we had in our account, we have now blown through the money we had saved for our two sons for christmas, and we have opened a carecredit line of credit which we have just used 100% of tonight as well. The estimated costs for her treatement through the weekend and to monday is around $3600, I can get some money with money left on credit cards and sell some things on ebay, but thats going to max out at around $500-600 i can stil lround up on top of the $900-1200 already spent. If anyone can spare anything at all, we would greatly appreciate it. Thank you for reading!