I'm going to take a test tomorrow. It's not going to affect my job, or my life; it's something I'm doing for additional learning and just because I want to. (A bet with myself may have been involved.) I know the material. I'm not worried about that at all.
So why, when I called the testing center, scheduled and paid for it, did my heart start racing, my lungs get all tight, my hands get clammy, and my adrenaline spike?
...Darn it, body, it's been over fifteen years since tests controlled your grades, and those controlled your student loans! Besides, the degree? It turned out to be less useful in getting half the jobs you've held than your pilot's license! You can stop going "Aaaaaaaaaaauuuuugh! TEST! Auuugh!" any minute now.