I took my cats Luna and Mr. Grey to be spayed and neutered. Before they went into the vet they loved each other more than anything. I go and pick them up and turn them out of their crates in my living room they start growling and hissing. So i put them back in crates until they calm down because i didnt want them to injure each other after being in surgery. I just put it off as the anaesthetic they used, that they werent completely themselves, they were still pretty groggy and staggery. But Mr Grey stayed his loving self with me and my bf but Luna decided to hide in my closet, but she did sleep in bed with us lastnight. This morning their both completely free of grogginess and seem fine except for the fact that Mr. Grey doesnt seem to recognize Luna, He is still hissing and growling at her, she just looks at him like "Dude its me, ya know the same cat you have lived with for months." Will he calm back down and start being nice to her again? Could that anaesthetic have messed with his mind like make him forget her or anything?