Ok you've had her for how long? I just started reading about her so I'm a bit behind.
It would seem she needs some time to adjust. Also, find out what she was eating before, because she may need to be weened off of that and onto new food. Try getting her attention with something like Tuna that has a lot of smell to it. Once she starts eating, she'll most likely start drinking too.
BTW welcome to the forum!