How do you feel when are going to write a Exam?

whenever thinks of writing an exam ... whatever it would be ... i feel very very nervous .. my fingers and hand starts trembling .. i get nervous a lot.

I first of all always end up preparing myself at the end on the day of exams, and then i get very scared and confused when i go for it. i dont have any thoughts of how i am going to do it because i forget everything possible. its not easy for me to remember even one answer at that time.I seriously never do well.My teacers praise me for my handwriting and presentation of my paper, but then i never complete my paper only because i dont know what to write there..

i feel bed...hehehehe..and stress...too.