Went under to have my wisdom teeth removed and I swear I was in hell for 5 seconds. All I could see was faded yellow and orange and I was hearing screaming.
I got shots before my teeth extraction. Don't dentists offer that where you got yours done? I would've just refused otherwise because even with the drugs I could feel the tools scrape against my skull or tissue or whatever.
I've heard pregnant women don't get anaesthetic because it was dangerous for the baby.