Feeling your heart jump is a very common thing, I get it all the time and it did use to worry me a lot but as I've had it for years now I've stopped worrying about it. The pain in your chest is a little worrying, but I've also had that lots of time and all it was, was indigestion! Pain from a heart attack
usually concentrates down one arm and is very painful. The sickness you feel could well be because you are worried. You don't say where you live, if it's the U.K. there is an NHS Helpline you can ring and I would definitely do that. The number is 08454647. If you don't live in the UK there may be a similar thing where you live, check the phone book. However as you are working at the hospital it should be easy to set your mind at rest by seeing someone there, don't - as you put it - wait it out, you have to go home sometime and if the pain and jumping hasn't stopped you'll just worry more.