In the last couple of weeks or so, my 7 month old puppy has went from being pretty chilled out to barking at the door and barking at any movement outside when she's in the garden. She even barked at someone when on a walk last night! Also, she's been a bit rough with her dog pal when she was out with her dog walker - this has happened twice on both Thursday and Friday. She's also getting more aggressive towards us.
This is really sudden and there hasn't really been a build up, especially the barking at the door - she started doing it one day and hasn't stopped. Is there anything we can do to calm her down? She's really out of sorts.
I should say that she's a rescue pup and we've had her for three months now.