Im a 44yr old female with heart rate off and on during day of 100-120 even at rest. Sometime awaken at night at 160. Had cardiac work up 6. Mo ago and was good with just some mild to moderate tricuspid cave regurge.  Im am very stressed and anxious a lot and take 2.5 mg of Valium to calm down when awaken by fast heart rate.  I tend to get palpatations just before cycle. Could hormone fluctuations contribute to this?
Hi mild to moderate tricuspid regurgitation is normal and is nothing to worry about until the patient is symptomatic, Tachycardia, also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults. Heart rate 120-160 comes in tachycardia. Tachycardia can be part of the bodies normal response to anxiety, fever, rapid blood loss or strenuous exercise. In your case high anxiety levels are responsible for tachycardia. Now let's come to effect of hormones on tachycardia, Jusyt before the cycle there is change in estrogen and progesterone levels in the body, this has a direct effect on the body, these changes can be a cause of tachycardia, however in your case anxiety levels prove to be the cause of tachycardia.