The last several months I have been having a heart arrhythmia and tachycardia. Other than the odd, "Hmmm that's odd" I have not thought much about it. This last week it has been happening a little more and last night it was quite bad. I went to see my doctor today on my lunch break who ordered a immediate ECG. He also ordered a 24 hour heart rate monitor for next week. My normal resting heart rate is at between 90 -110. That is high! I haven't received the results of the ECG but I am guessing it is normal ot I would have heard back. I realize a resting heart rate can vary according to ones fitness level but I am not that out of shape. He feels the problem may be electrical. Tonight I am going to take a rest from exercising and will talk to him tomorrow about what he suggests until I get the results back from the heart rate monitor.