I'm a tech and where I work we keep any OHE overnight and we would NEVER let anyone see their cat in that condition!!!! All of our surgeries are done between the hours of 8am and 11am each morning. Most of our kitties are still groggy by the pm but generally awake. I am disgusted that the vet let you see your cat like that- that's not fair to you!! We have had kitties that take more time to recover than others. That paddling and shaking reaction is completely normal. I know when I first started working there, seeing the animals come out of anesthesia was really disturbing but now I understand that it is normal. I am sooo sorry that you had to see your cat like that and shame on the vet! Don't worry she will be ok- I'll keep you in my prayers tonight.