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My cousin pasted away and my aunt couldn't take the puppy to her senior housing community, so I have her at the moment. We have no idea how old she is, or if she has been vaccinated. The only thing we know for sure is that she feeds her Purina Puppy Chow (which i'm sure isn't good for her) because we saw the bag when we were packing up her belongings.

I haven't had a dog in YEARS so i'm totally unsure about what my next steps should be. I have read several forums that debate grain vs no grain dog foods and now i'm totally confused. My cousin loved her dog and I want to make sure that I am providing the best life for her that I can.

1) Will the Vet be able to tell what shots she has/hasn't had?
2) What food would you suggest?
3) How do I get her to feel comfortable at my place? (she is hiding on the side of the sink and when I went to pick her up she snapped)
4) Why hasn't she used the bathroom since she has been here?

Any advice would be greatly appreciated.