I pinged you, Lil'freeper, so you could weigh in on this question/comment to SuziQ.
Have you ever considered taking magnesium for your heart? I've read that most people are low in magnesium which is essential for proper heart function, plus like 300 other functions in the human body. OB and I have a cup of Natural Calm every night (we've never gotten higher than a heaping teaspoon,'cause it really works well on one bodily function!). Couldn't hurt, might help with those occasionl palpitations.
Make that a cup of Natural Calm TEA, rather than a cup of Natural Calm
Well, I'm thinking that the heart palpitations are hormonal, since I'm getting near 'that time of life'. Neither my regular Doc, nor the Cardio guy could figure out why they were happening. I rarely have them anymore, though, and since the Cardio guy told me there wasn't a problem, I don't worry about it anymore.
I don't know much about magnesium. I had some recent bouts of heart palpitations that were from extreme stress - relaxation techniques helped.