My question is concerning an irregular heartbeat. I wore a holter EKG unit on for 48 hours and the results were normal even though I was having irregular heartbeats. Blood work was completed and everything was normal including my thyroid. I was feeling nauseous and tired and a heaviness in the chest and upset stomach in the morning (a sort of heaviness in the upper stomach. It is much more prevalent when I first wake up in the morning. The doctors explained to me that it could be caffeine related, premature ventricular contractions or mitral valve prolapse.

I am very confused because doctors tell you its nothing to worry about because I was only 36. I am 38 now. I have decided to find out on my own by asking an expert such as yourself. I am wondering whether the reason for this problem is a loss of electrolytes due to perspiring alot during exercise. I exercise for over an hour 5 days a week. I am in the healthy BMI range and not overweight. My second guess is that my digestive problems of bloating, gas and intermittent constipation and slight diarrhea are the cause. I do suffer from acne and have since I was 18. Does any of this help? I am so frustrated because I take care of myself. I very rarely drink (1 per week), do not smoke, eat homemade bread of whole wheat, ground flax seed and bran, and eat fruits and vegetables, protein sources and dairy. Do you have any idea as to what may be causing this problem? I have been searching the internet for ages and there are so many differnt answers that I am thoroughly confused. Any suggestions from you would be greatly appreciated!

Thank you very much!