I wish i never googled my symptoms..

I just googled my symptoms because my left upper arm hurts because i had sport in the last lessons, and i already took a pill for my pain. And now i googled it and it says that i have a Heartattack? I´m 13 what the hell T_T?? My sport lesson was 8 hours ago and i´m still alive tho- I dont know how it is to have a Heart attack but i dont wanna experience it..

Bye my pookies :3