Do i have an abnormal heart rhythm? i have been having irregular heart beats, whenever i stand up my heartbeat fastens. is my heart normal?

It : It is normal for the heart rate to speed up some when you stand up, particularly if you stand up quickly. If the increase in rate is dramatic, this might indicate that you are dehydrated or perhaps have another medical condition. When you stand up, the cardiovascular system must compensate against gravity to maintain adequate blood flow to the brain. This is partially achieved by increasing the heart rate. When you are dehydrated, there is less total blood volume in your blood vessels so your heart has to pump even more quickly and so you might be more aware of you rapid heart rate then. Try increasing your fluid intake, but if the symptom persists go ahead and see your doctor.

Good question: When anyone stands up, their heart rate quickens - that part is normal. Regarding your irregular heart beat: the most important factor in determining if it's dangerous to you or not is whether or not your heart is normal. So your question is right at the "heart" of the matter! you need an evaluation with history, exam, ekg, echo, blood work, and possibly a stress test.