Sick pomeranian

by Kelly
(North Dakota)

We have a 4 year old male Pomeranian. He has been sick since Saturday, throwing up and with bad diarrhea. On Saturday, he was throwing up all day long, along with going to the bathroom every half an hour or so. Since then, he has only thrown up a couple of times, but he still has very bad diarrhea. We haven't changed his diet recently. We thought it was possible that he got a hold of a piece of chocolate, but it's been days now, with no sign of it ending. We can't afford to go to a vet right now, we're a family of 4 on a budget, because my fiance just got laid off, and I am unemployed. He has drank water, and we have given him some rice, and we are now at a loss. I don't want anything to happen to him, we don't know what else to do. Whatever he has isn't affecting our other Pom, who is just fine. What can we do?