Wierd heart rythm today. felt like a motor inside of me, head dizzy, pressure on chest , out of breath .? it felt like my heart wasnt even beating properly it just felt like a motor gone of inside of me, i couldnt even count my heart beat it was going so fast, it felt like i was going to faint, pressure on my chest. im only 15. then it randomly poped back into normal. so wierd im really scared.