Not trying to be the mean person here but honestly do you want your dog to waste away to nothing? I'm being completely blunt here get the dog to the vet now! if you cant afford it then get a payment plan or find somone to look after the dog he needs urgent care asap and if you cant provide that then please rehome him or anything because he sounds extremely ill and its not fair on the dog at all, the dog shouldnt have to suffer due to your funds being low he didnt ask to be brought!