Sarah Katz, 21, had a heart condition and was not aware of the drink’s caffeine content, which exceeded that of cans of Red Bull and Monster energy drinks combined, according to a legal filing
Sarah Katz, 21, had a heart condition and was not aware of the drink’s caffeine content, which exceeded that of cans of Red Bull and Monster energy drinks combined, according to a legal filing
Half a monster is 43mg caffeine. About as much as a Pepsi, or less than 3oz of Dunkin Donuts coffee (a small is 180mg at 10oz). I'm not at all saying you're lying about your experience, but what you are describing is an extreme caffeine sensitivity (or a reaction to something else).