Aye, you're not feeling it right now, cause it's still in your system, but you couldn't have been more than, what, 25? Younger?
Unless you made the choice to regress to your former self, which I doubt you did, then you didn't make the choice to drink. If the intent wasn't there then you weren't in control and it would be akin to me injecting you with alcohol, which wouldn't put you back to day one, even with the biggest prick of an AA sponsor.