Sometimes when Bend down suddenly or sit suddenly or may be without any sudden work my heart starts beats more faster and at that time I can't do anything. It will come to regular beats after 5 to 10 min or may be half an hour. When I consulted jayadeva hospital 2 years back they told no problem. And last month I faced this problem around 15 times and once or twice in a month I face this problem. Please suggest me solution.