Caffeine gets me, too. I'm definitely sensitive. I had gotten so bad with them a few months ago I was basically not sleeping. Sleep is already tough for me, struggled with insomnia my entire adult life, so energy drinks definitely don't help my cause after the sun goes down.

But you're right--it is nice to know that as a sensitive, you just sprinkle some caffeine on us and we are good to go for the long haul. :)