I'm not sure heart dysfunction is the right words to use, because it's much more than that, my situation has been going on for about a week. I never go to the doctor, I'm one of those people who believe if it aint broke why fix it. I have been very blessed, I have asthma and that's been my one and only health problem, and it's not often (seasonal) This last week I woke up in a panic because the bedroom was spinning around so fast I screamed and grabbed whatever was there (my husbands hand). I woke up, went to the bathroom, settled myself back down, went back to sleep, a hour later I was awoke again by the same thing, and again i screamed for help, and said it's happening again. Every since this took place my heart races, at a abnormal rate, and it only happens when i sit down to relax, I've noticed as long as I keep busy, I don't have a problem, but even sitting here typing this, I'm experiencing my heart racing, and then slowing down to normal, then almost skipping beat. The dizziness, is still there, but not nearly as intense or horrorable. I told afew people at work, and they mentioned something called Vertigo, the symptom match somewhat, but not the heart irregularities. I feel like I need to go to the doctor, but that will probably be my very last resort.