Causes of Heart Palpitations. Many things can cause heart palpitations. In the vast majority of cases, the cause is either related to your heart or is unknown. Non-heart-related causes of palpitations include: 1  Strong emotions such as anxiety, fear, or stress; palpitations often occur during panic attacks. 2  Vigorous physical activity.
http://www.webmd.com/heart-disease/guide/what-causes-heart-palpitations
Tachycardia and hormones. I am an RN and had started having problems with tachycardia approx. 2 years ago. I went to the ER approx. 5 times for rapid pounding heart rate and chest pain. My medical Hx includes radiacal neck disection for thyroid ca, hypocalcemia, hypokalemia, hypomagnesemia.
http://www.medhelp.org/posts/Heart-Disease/Tachycardia-and-hormones/show/867201
I am very tired of this interfering with my daily life, I never know when it is going to hit, and sometimes I get dizzy, lightheaded, shortness of breath etc. -------------------------------------------------------------------------------------------------------. Dear Roselyn, Thank you for your question.
http://www.medhelp.org/posts/Heart-Disease/Tachycardia-and-hormones/show/867201
You may have no symptoms at all. Or: 1  You may feel nervous, moody, weak, or tired. 2  Your hands may shake, your heart may beat fast, or you may have problems breathing. 3  You may be hot and sweaty or have warm, red, itchy skin. 4  You may have more bowel movements than usual. 5  You may have fine, soft hair that is falling out.
http://www.emedicinehealth.com/hyperthyroidism-health/article_em.htm
Having too much thyroid hormone can make a lot of things in your body speed up. You may lose weight quickly, have a fast heartbeat, sweat a lot, or feel nervous and moody. Or you may have no symptoms at all. While your doctor is doing a test for another reason, he or she may discover that you have hyperthyroidism.
http://www.emedicinehealth.com/hyperthyroidism-health/article_em.htm
Although there are many causes of palpitations, they can occur if you are over-replaced on your thyroid hormone (meaning you are taking more thyroid hormones than you require). This may cause your heart to beat faster than you are used to.
http://www.medicinenet.com/script/main/art.asp?articlekey=78079
Heart palpitations are a feeling that your heart is beating too hard or too fast, skipping a beat, or fluttering. You may notice heart palpitations in your chest, throat, or neck. Heart palpitations can be bothersome or frightening. They usually aren't serious or harmful, though, and often go away on their own.
http://www.webmd.com/heart-disease/guide/what-causes-heart-palpitations
Atrial fibrillation is a type of arrhythmia, or irregular heartbeat. Cells in your heart make electric signals that cause your ticker to pump at a regular pace. If you have AFib, your heart's two small upper chambers (the atria) don't beat normally. Instead they beat too fast, with the electric signals triggered from different parts of the chambers. That causes a rapid thumping in your chest. You may also have dizziness, sweating, chest pain, or shortness of breath. Or, you might not have any symptoms.
http://www.webmd.com/heart-disease/atrial-fibrillation/heart-palpitations-overview
The psychiatrist has told me that he believes hormones are related to this, and said that he has seen this in some women who are premenipausal (approx 4 -5 years before the onset of menopause) and that it lasts approx. 2 years after sessation of mensus.
http://www.medhelp.org/posts/Heart-Disease/Tachycardia-and-hormones/show/867201
Yes, if your pulse is more than 100 beats per minute and you've not been exercising and don't have a fever. Yes, too, if you have: 1  Palpitations coming in groups of three or more, or if they keep happening. 2  High cholesterol, diabetes, or high blood pressure -- you're at risk for heart disease.
http://www.webmd.com/heart-disease/atrial-fibrillation/heart-palpitations-overview
what hormone causes your heart to beat faster
Thyroid hormone causes your heart to beat faster.