im getting old!

oh no, first time in my life.. im feeling myself getting old.
last time i have no problem at all having coffee for glasses daily.
but recently, i found out my heart will get palpitating after consuming coffee ~
and i will feel very uneasy about it..!
shi*, should i stop having my nescafe?
then what drink should i turn to ?
years after years, coffee is only my best companion...
im thinking about this seriously.....
but im only 26-year-old...