Theater Hangover 

After the strike of a set, when the excitement ends, the adrenaline dwindles, and one finally feels how tired they really are after the run of a show.

Now that the show is over, my theater hangover is so bad, I can't get out of bed.

Theater Hangover by Mr. Bug March 28, 2017

Theatre Hangover 

That feeling you get when you get out of a rehearsal that was

1) long
2) tiresome
3) angering
4) any combination of the above

Occurs often during Tech/Hell week

I can't I have a theatre hangover

Theatre Hangover by adriantheatrekid April 20, 2011