First of all calm down. You're still here and you've been having them how long? That should reassure you that you aren't about to depart this earth. There's lots of information about palpitation out there, visit a few websites and read up on them. They are frightening but they seldom mean you have heart problems.
Heart palpitations are often linked to stress and anxiety. Stress or panic attacks can occur months after a stressful event and you don't think to link the two. I never considered myself a worrier or a stress head, quite the opposite really, but when I had my first panic attack, I had just eaten and was settling down to watch TV, completely relaxed as I thought. Boy was I frightened when my heart was racing and thumping and my breathing was all funny. A quick visit to our Casualty department soon found the problem. Since then I have had plenty more, often after settling down in bed. Visit this site, * Disallowed website link removed by hb-mod, moderator *
for a wealth of information.
You will find that you aren't alone, it isn't life threatening (though it is very unpleasant) and that with a bit of work on your part you can regain a lot of control. I'm not free of them but they no longer get a hold on me and by and large they aren't very frequent any more.