Hi! i am female 26 yrs old,having problem of heart palpitation .. mostly in the morning time its about 120 - 130 beats per min n remain for about1 or 2 hours .. in day or night tym also heart beats very fast sometimes its about 140 per minute.. symptoms include thrust , light headness , little breathless feling , n feeling of heart racing , n its lyk some1 sequze my neck its lyk .. weekness ..wht is it ? is it due to heart problem ? or its stress related?