Stress!!!

I had a pretty stressful night on Saturday. I won't bore you with the details, but I spent several hours desperately trying to do my job properly while dealing with loads of last minute changes that should not have happened and impatient crowds. (For those who don't know, I run the box office for a small college.) The concert was really long, and I didn't leave work until almost midnight. I still had things to do when I got home, so I didn't get to bed until after 2 a.m.
I had a really hard time getting up the next (that?) morning for church, but I assumed that was because I didn't get a lot of sleep. After I got home, I dozed most of the afternoon, and didn't do anything productive. I went to bed at my usual time.
This morning, I felt really lousy and struggled to wake up. It felt like I had a hangover (or at least, what I assume a hangover feels like.) I finally started feeling better this evening.
So, I wonder: Can you be hung over from stress?