This question is a result of my personal experience... But I guess that is common for many of us.
My school timing is 8:00 am to 1:30 pm (usually). During normal school days I typically urinate one time - at most. Last month when we were having our practical exams. There was a fair amount pressure to score high marks and on top of that we did not have any experience with such exams.
On the day of the exam; I was a little nervous about it. The duration of the exam was 3 hours (from 9:00 am to noon) on this day I urinated 4 times.
Several of my friends also experienced the same thing.
I was nervous also because for two days before the exam I was afraid that I hadn't even touched any book. I was thinking that there was no way I could cover the whole book and so I didn't even touch them.
Now that I have final exams in about two weeks, I was revising my syllabus but for the last 4 days I'm not touching the books. Whenever I start solving problems from any chapter then I have to look back for the formulas. Questions in which reasoning is asked, I love to do that. I'm not very good at memorizing things and so when I compare myself to my classmates then I feel like I don't know anything and so I give up. I have never tried to memorize anything, but I understand the reasoning and the concepts.
Kindly give me the answer of the question.