Hi
Until very recently, Holly has been well behaved around other dogs. She has lots of doggy friends and has always been fine with them.
A few days ago, a large white dog played very robustly around her and then chased her. There was no aggression, just really vigourous play that seemed to upset her.
Since then whenever she sees large dogs that are unknown to her, she chases and barks at them. It doesn't seem aggressive but is persistent and won't come back when called.
Until now, the other owners have been very understanding but I want to control this before it gets worse.
Holly is a very gentle, quite nervy dog so I suspect it is fear based.
Any help would be really appreciated.
Thanks