Good morning! My Maltese name is Neo and I am new to this forum and a new dog owner as well. Neo came home 5 days ago, he was active, happy, pee and poo all over the house. We bought him new food and have him Nutri-Cal per pet shop advise. That night he vomited twice but continue to be himself for the day. The second night he vomited 4 times and began to loose his energy. Brought him to the vet and send him home with a deworming and probiotic. He has not touch any food but continues to drink water and pee. We have not stop the Nutri-Cal thinking that it would help but I am just about to think it is what is making him sick. He has not touch food in 2 days and his vomit is brown like Nutri-Cal and has little pieces. Doctor office is closed today because it is Sunday and Easter. I do not know what else to do.