HI everyone, First off I want to say that I am taking him to the vet as soon as I get off work at noon today. I was wondering is anyone could help me figure out what is wrong. Yesterday morning he threw up. I noticed that he is not eating very much and this morning I noticed he didn't use the litter box all night. this morning he looks like he pooped a little but no evidence of pee. It is hard to tell how much he has used the litter box though because we do have 2 cats. Any ideas? Thanks.