Possible Reasons for Exploding
Test stress: The most likely candidate, I'd wager. I have my Japanese oral exam Thursday and the written one on Friday. I'm already pretty freakin' stressed about it.
Solution: STUDY...start tomorrow early on in the day (tonight, I think sleep would be more beneficial) and continue this course of action Wed. and Thurs. You will survive this way.
Theater work: This includes both the class and the tech assignment I have.
Solution: Well, you've never failed a theater class before, and you don't have to present your scene for a while yet. The tech crew has until the start of May to complete it's task, and you only need 12 more hours within the next 3 weeks. You can handle it.
Course selection: Course selections are due this Friday as well.
Solution: Talk to Kobayashi-sensei tomorrow after class. She will help you, honest.
Illness: Still feelin' pretty damn shitty, and this is not helping me concentrate or work.
Solution: Take it slowly, eat right and take your medicine, as well as getting sleep tonight. Don't stress out about being sick...just focus your internal energies on getting better.
Get through the day, and you will survive. Get through the week, and you will survive. Don't Panic. The semester will be over before you know it.