My dog is behaving strangely
Hello,
For the past few days my dog is behaving very strangely: she gets startled very easily and then starts to cry as if in lot of pain.
For example if someone comes close to her she gets startled, if someone pulls on her chain even lightly she gets startled and begins to cry etc.
She looks lethargic and depressed and has lost some weight. She is eating and drinking though. She is eight years old. She is an Indian dog(Indian pariah).
What could be the matter?