She wouldn't come near me, and headed for the back room. Thinking she probably wanted to go outside, I followed her and opened the back door, but she kept several feet away from me and nervously eyed the door into the garage (on the other side of the room from where I stood) as though she might be able to make an escape through it if only it were open wide enough. She refused to approach the back door I was holding open for her until I stood back from it at arms length, and then she darted through it, not even pausing to see if any real dangers lurked outside.
Half an hour later when she wanted back in, her inexplicable fear had passed and she was quite happy to hop onto a chair and beg me to pet her. I wonder if she is subject to temporary fits of amnesia during which she can't remember who I am? Or maybe she's just a bit crazy. Maybe she needs a kitty shrink. Or maybe she knows something I don't. Maybe I get taken over by some alien entity now and then, and she's the only one who realizes it.