Why does my heart suddenly pound hard once and it makes it difficult to catch that one breath?

I have the same thing. Its caused by the heart murmur. Basically you are feeling the heart murmur. This scared me the first few times it happened i then wrote if off (i was in 9th or 10th grade and didn't care apparently haha) and then at a physical i was told i had a heart murmur i asked if thats what i was feeling ( I wasnt born with a murmur, it kinda just developed). she told me yes, that only about 3% of people with heart murmurs can feel it. Its safe I have felt it for 8-9 years, you never get used to it lol sorry. I just had one now actually. I only get them maybe once or twice a week sometimes more sometimes less. But it does take your breath away which is why i never really got used to it. Hope this helped!

I have no idea what this could be. I searched for a couple websites that might hopefully help you. You will probably have better results finding something helpful than I did since you can describe the problem more thoroughly. Here are the websites: http://en.allexperts.com/q/Heart-Cardiology-964/ http://www.webmd.com/heart/ http://www.healthcentral.com/heart-disease/ http://www.healthcentral.com/heart-disease/c/question/create

Everything is not fine if this is happening. Could be something simple like a hormone or fluid imbalance. Do you feel it could be a panic attack? It could be a diaphragm spasm that makes it hard to breathe. Have the MD check the hormone levels, they don't do this with normal checkup blood. Good luck.

What you are experiencing is heart palpitations. They are quite common and can be a side effect of medication. I don't know if you are male or female, but menopausal women experience this. if your doctor says you are fine, don't worry about it. I get it quite often myself.

This happens to me as well some times. However, I know for myself that my heart is healthy. It is called palpitations when you can feel your heart beat hard. Many, many people can experience them occasionally. The thing that worries me is that you feel like you cannot catch your breath and that it feels like someone has knocked the wind out of you. That is not normal to experience with every palpitation. As for the heart murmur you had when you were very young, that is very normal. Most people hear heart murmur and think that it is a skipped beat. It is more of a general term for a sound heard that can be caused by many things. I would probably say in your case that your foramen ovale did not heal quick enough to form your fossa ovalis. Your foramen ovale is a hole that directs blood away from your right ventricle to your left atrium when you are in the womb because you do not use your lungs, so therefore they require no blood to be pumped to them. Upon birth, that hole closes up and blood flows into your right ventricle, making your foramen ovale your fossa ovalis. It is very normal and is not the cause of this. Without blood tests, an EKG and possibly a CT scan, it is almost impossible to say what you could have. It could be anything from a reoccuring pulmonary blood clot to blocked arteries to stress. If you had no other problems with it, I wouldn't be worried, but since you experience shortness of breath, go see a specialist and get a second opinion.