I think I'm losing it...

I'm sitting in class, and I can barely suppress the urge to laugh. I'm usually pretty good about pretending to pay attention, and looking very serious... but not today, for some reason. It's not that the material is funny. In fact, it's depressing how un-amusing this class is.

I keep laughing at things I am thinking, things I read online, things I've received in emails. I'm trying so hard to keep a straight face, but a smile keeps working its way out. I'm worried that the rest of the class is going to think I'm insane. Even if I am, I would prefer that they not think that.

Honestly, I think I'm at that point where you're so stressed/tired that you're a little bit unhinged, and the slightest thing can make you laugh or cry. I guess I should be thankful that I'm laughing and not crying.