If your test results came back ok, then the heart beats are probably just heart palpitations that are very common in people with panic and anxiety, even though you feel at rest your mind may not, and thats when you can experience the palpitations. You will find that if your focusing on what your heart is doing, you may get more than if you wern't. It is normal to get 1-2 episodes of heart palpitations a minute. I've found that when I lay down on the couch watching the tv is when I get a lot of palpitations, so I just grab another pillow and sit up a bit.

I hope this will help you.

A lot of things can contribute to heart palpitations, and caffein is one of them. I can't go without my coffee in the morning and it does give me a couple heart palpitations but I can deal with them now that I know that they are normal and won't hurt you if they are are not all the time.

have ur thyroid checked for hyper thyroid i had this and it was the sign of a over active thyroid i was put on medicines im fine now.. no more anxiety or irregular heart beats.. it feels as if ur heart can stop... or skips a beat..