Thank you Medusa,
Yes, the gas sedation worried me with his age. Yes, you're right as I did have 7 more months to enjoy him. He had excellent care with an Internal Medicine Vet and was monitored closely. The Vet kiddingly said he survived those 7 months because of his feisty temperment and not wanting to give up. I guess there are always things we wished we could have done better when it comes to our furbabies. I know so much more now since I've gone thru this with Tommy. I have another kitty (Maggie), and she cooperates with the vets and will practically let them do anything. Thanks for your kind words and advice. I believe we will be reunited with our pets some day.