When a cat has liver or renal failure - the toxins in food and medication are not being adequetely removed from his bloodstream. That is why he had the seizure.you cannot be stiff from a seizure and then wake up because that is impossible.
During a seizure an animal or a person is not aware of it or the world around them.
I think that Benny died during the seizure or right after and was not aware of anything. there is nothing anyone could have done because all of Benny's organs were shutting down.
Your little dog knew that Benny had died, animals just know these things).
I do not think it would have made any difference if you were there at lunchtime because it was just Benny's time to leave this world for the rainbow bridge.
Please go to www.petloss.com
and read the rainbow bridge story as I think it will comfort you.
Elizabeth, please understand that it was Benny's time to go - he lived a complete and wonderful life because of you and he is at peace and happy now.
He knows you are grieving for him and that you miss him and he misses you too. But he also knows that he will someday be with you again on the rainbow bridge. Most of all Benny loves you and he does not want you to be so sad.
Do not mourn Benny's death, Elizabeth - instead celebrate his life!
with warmest best wishes,