Can someone explain his tail puffiness in the morning?
So Midas adores me and my boyfriend. Like almost always in the same room as us, sleeps on the bed at night, comes when we call, etc. Generally, his actions towards us involve purring with a healthy dose of drool on the side. Except lately in the bathroom. Whenever we get up in the morning (no other time of day), Midas will do his normal following of us, but will stalk us into the bathroom with his tail puffed up like he is angry. Now, I don't think he is actually angry. I have seen him be aggressive at cats that go by the window, at which time his tail puffs up the same way, but he is making this weird chitter-yowl and smacking at the glass. There is none of that towards us, as he is still purring and rolling around on the bathroom floor.
I have always thought that a cat with a puffy tail was a signal of aggression. I don't know much about his past, such as when he was taken from his litter, but I do know that he was mostly raised with a dog. He doesn't get along with other cats very well, so I thought maybe he just doesn't know how to be a cat, but I don't think that is it. Basically, can a cat puff up their tail to signal something other than aggression?