my chest and left wrist

i'm not sure if this is the correct forum, so please forgive me if i'm at the wrong one. today i was working (working from home on a Saturday, which i know is kind of pathetic... but i'm trying to work as many hours as i can before i officially get laid off). and i had an extra Red Bull. i usually have 150ml per day (i take small sips out of the bottle instead of downing the whole thing). so at around 23:00-ish, i take a little more than i'm used to and i lay down and the left side of my chest began to hurt. but what really freaked me out was my left wrist hurt and it was a bit swollen, it hurt moderately and it made my hands cold. what is going on? is my heart beating too fast than it's supposed to be? or maybe it's just stress?