I m a 42 year old health female. For the past 5 days I ve experienced heart palpitations. It was a sudden onset and has not gone away. My heart seems to beat very hard hard and a bit fast. I ve tried to keep track of when it occurs but it is at different times. When I m at my desk typing, laying down to sleep, driving in the car. No stress induced or caffeine. I ve also experience fatigue and some hair shedding but the palpitations worry me. I have no medical conditions other than high cholesterol and the only medication I take is biotene and a multivitamin. Are there other indicators I should look for before calling my doctor? Thank you!