anesthesia question

[Lernermichelle]

Lucy had her surgery at about 12:30 today and came home at 2.  Since that time (4 hours now), she has been wandering around in the room I have her shut in, staring eagerly at the walls and behind the furniture in a hyper-alert state, as if the walls were teeming with mice.  She will let me pet her for a second or two but then resumes her wall hunting. I called the vet a few hours ago and they said the anesthesia is probably making her delirious, and that it could last a few hours. I just tried calling them again but they are closed for the night. Her eyes are also very dilated.  Has anyone ever seen this kind of reaction to anesthesia? I have seen many animals undergo surgery and have never witnessed something like this. She does not seem to be in distress particularly... if her eyes were  not dilated and she had not just had surgery, and if the other cats were not ignoring her behavior, I might think she was eagerly listening to mice or something.  But she seems totally insane.  Any info you can provide on this would be helpful. I will do some internet research too.   They had said she could drink at 4 and then eat, but I have been afraid to feed her while she looks so strange.   Thanks, Michelle