I was in hospital a couple of days ago for this kind of thing. Ive always had heart flutters, but never reall thought too much of them until now.
I had just gotten home from work and had 3 cones of some pretty high quality weed, when i felt a tightening of the chest, pain in my left arm and dizzyness. I honestly thought i was having a heart attack, but being 27, thought it was too strange. I had my housemate who is a nurse check my pulse which was 170, so she called an ambulance after about 10 mins of this starting. Once the ambos got there and got me in the back of the truck, it was starting to slow down.
The nurses and doctors at the hospital didnt really think too much of it, mainly because i told them i had 2 cans of Mother during the night at work. After about 15 mins of being in the ER, i had that same feeling again, and the heart rate moniter starting beeping and carrying on. I looked up to see my heart going at 214 bpm. The doctor had me tr some physical manouvres to try and slow it down, which didnt do anything at all. So after 10 minutes of my heart over 200, the decided to give me some Adenosine to stop it. I had 2 cardiologists, about 6 doctors and a few nurses wheel me into the resus room (very scary experience that) and give me 6 units, then another 12 after the first didnt stop it. I cannot explain the feeling of Adenosine at all. Only lasts a few seconds, but veeerrrrry strange feeling.
After this stopped and my heart rate was back at about 90 for 30 mins they took me back to ER. This occurred another 5 times after the initial attack, but with my rate only getting to about 150-170, and calmed down itself after about 5 mins.
The cardiologist beleives i may have a condition called SVT. I dont know mucj about it at all, but learning each time i see the doc. He also think that 4 yrs of drinking 2 cans of Mother a night could have damaged my heart in some way so now im off for a battery af bloods and ecg's etc. Not a fun experience at all.
Definately staying away from energy drinks now tho...