My 10-year old cat suddenly meows?

I've had my female DLH calico for 10 years, and she's never been much of a talker. When she does meow, it's high-pitched and very soft, like a kitten. However, I recently moved into a new apartment, and all of a sudden, she meows (louder but still her normal, high-pitched meow) when I speak, like she wants to communicate with me. She has food, fresh water, a litterbox, and checks out at the vet. Is she just expressing her displeasure about the move, or could it be something else?