A. If she cries when you are picking her up it means her belly probably hurts a lot. Together with the other symptoms it is quiet typical of parvo virus infection, especially at this age.
Parvo virus infection is a life threatening disease and you need to take her to the vet as soon as possible in order to first test it, hopefully it will be ruled out. If it is confirmed - she will need intensive treatment and hospitalization.
A. This sounds serious. Since your puppy is still very young, it could go downhill very qucklly from a virus infection or intestinal problem, as it would probably get better quickly with veterinary care. This is an emergency and you need to take your puppy to the vet right away, please.
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