Bubba, our precious 5 month old baby, has fluid collecting in his abdomen. He doesn't act sick, just looks like he has gained a lot of weight. He had diarrerra for about three weeks. Finally got over that. Took him to vet yesterday and they don't know what is going on. We go back to doctor on Tuesday. They said it might be heart problems. Has anyone else had problems like this. Bubba is my baby. We all love him very much. Any advice would be greatly appreciated.