One big glass of water with 2 icecubes and a straw is really awesome
At the uni all of the drink machines are mostly filled with Red Bull, Gurano or other extreme level caffeine drinks. They even hand out free samples of these drinks to the students walking into the campus on a regular basis. I won't touch the stuff.
No I just get unwanted side effects. I suffer from high blood pressure as well and have for years so these drinks have a dramatic effect on me. Palpitations like you wouldn't believe.