She sounds like she just doesn't like the dog, period, and very stressed about it. However, I, too have experienced this this year, and it has resolved itself
. Meggie spent about 2-3 months in the sunroom, on top of the filecabinet (literally!), to stay away from our new dog ( the other 3 rolled their eyes and said "When is she leaving?" for about a month- well, except Butterbean, who looked at her and said "MY house, you stupid dog!"
) Anyways, this was after having another dog (who passed away) her whole life. We were even afraid she was going to run away, because she is indoor/outdoor, and didn't come home one night, and then didn't want to come in. Needless to say, she became an indoor cat for a while! I was REALLY worried about what I was going to do! Then, suddenly it seemed, she was fine, and rubbed and loved on the dog, and here they are now:
(these are "clickable thumbnails")
And I know that our Boxer seems grown, but Boxers don't full mature physically until 2, and mentally until 3 or 4 yrs, so we were dealling with a 60 lb puppy trying to get our cats to play with her
! Just give her lots of Special Attention, and see if that helps (treats away from the puppy, etc.) I hope it gets better soon! I think part of Meggie's problem was she was mad about us replacing her dog- she mourned our Corgi for a long time, and we waited a year, but maybe she was upset- I just don't know.