Having a coffee abnormality?!
I'm 15 years old btw
well, at 15, coffee shouldnt really be a part of your diet... the caffine can mess with you in more ways than just giving you a buzz, I get tired sometimes after a cup of coffee, but it's because I am a regular coffee drinker, and I guess my tolerance is low.
But caffine affects people differently. Some people have higher tolerance, and some people have heart issues when they consume caffine.
I think the most likely reason you have trouble sleeping, aside from the caffine, is the high sugar content in those mixed coffee-drinks. Youre often having as much sugar as a bowl of ice cream. That rush is unavoidable.
Daily coffee fiend
That's happened to me a few times. It most likely because you haven't eaten substantial food. so the caffeine and sugar make you really jittery and stuff.