Dental treatment under general anaesthetic..?

I had the IV Drip and I can tell you it's like being in La La Land. I didn't feel any of the novocaine shots, I was peacefully in my own world as they drilled away. No sound did I hear, No noise did they make. I awoke and am home now...and my teeth don't even hurt as much as when I would have been awake, and I had 12 filled!