I am 11 and i drink a lot of mega monster drinks and the caffeine has no affect on me is that normal And if not why does this happen to me?

Answer 1

You may not feel the stimulant effect as much as other people, especially if you are used to caffeine, but it is still having an effect on your body. Excessive caffeine, especially during growth years, can be very bad for your heart.

Go a couple of days without a caffeine based energy drink. You will likely get a pretty bad headache and feel sluggish. This is a symptom of caffeine dependency building in your body.