I was watering trees today for a quest, so needless to say, I received a lot of hooch and ginger.
I first noticed this bug when I drank a hooch while still smashed from another. The "smashed" progress bar proceeded, but I never reached the "hangover" state. I went about playing the game, and when hugging a crab, I got some juice. Once I drank the juice, all of the hangover notifications appeared at the same time, along with the notification that my hangover was suddenly gone.
The next time I had two hooches, I drank both of them at the same time. The same problem occurred, except this time, it ended with lemon juice (mmm, puckery). It happened every time that I would drink two hooches before reaching the hangover state.
I can't remember for sure if this affected my mood or energy at all; I do remember a couple of times, looking up and realizing that my energy was suddenly really low, so I had to either meditate or eat a sammich. Of course, that may have also been me being too into the game. ;)