Hello I haven't posted here before and hope that someone can advise.....I have recently rehomed a working cocker bitch un-neutered and 2 years old. I already have a castrated labradoodle boy. She settled in really well and she's very happy at finding herself in a home for the first time (she was a working gun dog living outside before) but about 4 days after she arrived her vulva started to swell. She's only a little bothered by it and there's no blood or discharge. She's not due a season until October. Is it possible that changing home could cause a sort of 'phantom season' and if so why?