Puppy is throwing up?

Question
My puppy is 4 months I do believe and he just threw up twice on my floor it was brown with weird looking stuff in it. I looked up parvo symptoms Idk if this is parvo or the food just didnt agree with his stomach Im worried about him. My mom has been feeding him mixed dog food, there is 3 different dog foods mixed in his bowl is that bad? one is puppy food, one is all natural dog food, and the other is for our other dog hes a year and a half. should we be feeding them separately? Im just really worried bout him. please help

Answer
Sometimes dogs just dont feel good. Dont freak out as its probably just an upset stomach. I would check with your vet regarding parvo. As far as feeding, I HIGHLY recommend you feed him one type of food. Make sure the food is a good food at that. One of the ways to tell the food you are feeding your dog is of good nutritional value is look at the first ingredient. If you'd eat it chances are its good to go. Unfortunately todays dog foods contain a lot of useless grains that are hard to digest, byproducts, and chemicals. here is a link that will tell you more: http://lapofluxurypets.com/blog/choosing-your-pet-food/ Search "dog food label" for more blogs regarding dog foods and commercial foods. Whether you feed them together or separately is completely up to you. As long as they are good with each other I see no issue with that.