Cat not using the bathroom, eating or drinking

[bluesky31986]

Hello I really need some advise other than take my cat to the vet. I live in a town with one vet. He does not do payment plans and I just don't have the money to out right pay for a vet visit. Its been 3 days since I've actually seen one of my cats eat or drink on his own. I have been using an eye dropper(2tbs.) to get water into him. I give him 4tbs. every couple of hours. When I put him near food or food near him he just moans. He goes into the litter box quite often but nothing comes out. He'll scratch at the litter like hes trying to cover something up but theres nothing coming out. 2 days ago he just walked around and moaned all day long. Especially when he was in the litter box. He wouldn't moan when he was laying down. He stopped the moaning. Now he just lays around more than usual. He won't even come up to me to get pet. But he seems happier when I go to him and pet him. In a way I just want to think hes "backed" up with how much time he spends lin the litter box but Im not sure. Hes an indoor cat. If you know anything I can do to try and help him out and make him better please let me know. I know I shouldn't have a cat if I can't afford everything to go with it but when I moved into this place a couple of months ago the landlord said that the people here before me had the cats and left them and I could put them out if I didn't want them and I just didn't have the heart to kick two poor little cats out of there home just because money is tight for me. So please if there are any ideas please let me know. Thanks!!!