productive hangover
When you're too hungover to go out and be social so you actually get a lot accomplished by staying in.
After Noelle's party, I had a really productive hangover and I cleaned my entire house.
Productivity Hangover
A period of time in which you are unable to focus or accomplish tasks following an intensely productive period of time.
I got so much done yesterday that nothing is getting done today…I have a productivity hangover!