HAs anyone tried that 5-hour energy drink? how do you feel? does it work?!

HAs anyone tried that 5-hour energy drink? how do you feel? does it work?

I tried it during finals for college. I took one so I could stay up all night to study. I really don't think it worked because there were many times during the night that I wanted to just sleep. Also in the morning I had a huge stomach ache during the exam. Needless to say, I didn't do well on the exam.

It could of been a combination of food and the energy drink but noone will know for sure

I just know I will never use it again