The older I get, this seems to be more common. When I was younger and drank, beer or otherwise, I wasn't quite aware once I was inebriated enough. As I got older, I became aware. Clammy skin, flush face with minimal feeling, being aware you've consumed quite a bit of alcohol, finding yourself talking nonstop but not sure what about, etc. Meanwhile you're sitting there, talking the night away with company, and in the crook of your mind you're completely aware you will face plant if you stood up too fast. And that you need to be very smooth with your movements so as not to alert others near you that you've become heavily inebriated.
As I said, when I was younger, I wasn't very aware of anything after consuming an amount of alcohol. That changes as you get older. I don't think I could feel the former unless I dank a dangerous amount. The sensation of being aware that your BAC is high and double checking everything you do prior to doing it and being careful lends itself to an interesting experience. This, I believe, is mostly due to the biological effects alcohol has on cells in the interim and also that it retards respiratory function. I think the best way anyone's described it is if you've become a supernatural spirit embedded within your own body.
And with that, I bid you adieu,
@Scepticalscribe. It is late, I'm quite tired and have many things to do in the morning. Have a wonderful Sunday.