Just when things can't get worse

I came home yesterday to three piles of vomit and Tiger hiding away. I tried to give him a treat, as he loves to eat, and he refused. So I took him to the vet. 2.5 hours later and a bill that costs more than I can afford, he might have a bladder/kidney illness that is common in male cats and could even be fatal. Needless to say, I haven't really slept as Tiger was locked up in the bedroom so I could monitor his eating, drinking, and bathroom movements. I have a feeling I'll have to take him back in this morning as he still isn't urinating a lot and he hasn't had a bowel movement. Just wish I had the money. Anybody want to loan me some?