We have a nearly 3 year old working lab who we've had since a puppy. Very well loved family pet, she is working line but doesn't work. Always been fine sleeping in the kitchen, once or twice since having her, she has woken and scratched the door to go out as needed toilet, always gone back to sleep afterwards. Very well trained and no issues there at all.
The past week she had started scratching at the door from about midnight, all through the night. We go down, let her out, settle her and she's fine but within 1 hour she starts up again. We've tried being calm, tried minimal contact when we let her out, tried using an angry voice with a firm "no".
She also seems a bit off her food - has left it a couple of times recently, but also in general just seems less interested in food. She's not the bouncy dog she was until this last week. She is exercised well.
I am going to book her to see the vets as something just seems off and he behaviour is so out of character but wondered if anyone has experienced similar and has any insight please? Thank you