question: I have been experiencing heart palpitations for almost 2 years.I have visited a heart specialist and it was recommended that I have a holter attached for 24 hrs. in order to observe the symtoms. The first time irregularities showed and it seemingly was connected to the leaking mitral valve I have , however, there appeared to be no deterioration of the valve so It was suggested that I monitor the symtoms and go back if necessary-whilst making some life style changes etc. I had to go back to have another holter attached some months later, which again showed palpitations occuring--was told not to worry and if they continued may have to go on beta blockers. The thing is, I do not experience severe symptoms during the 24hr holter phase ,however,palpitations can last for up to 8 hrs at times --leaving me totally exhausted. I was awoken last evening at midnight and experience them for the remainder of the night sleeping a little . I am going to go back to the heart specialist (very soon) but as i was doing some research I came across this site. An observation and comment would be welcome.