When you have these types of symptoms, you should be checked out by your doctor. When I had pain in my chest and heart palpatation, I called my doctor and he ran an ekg, echocardiogram, an ultrasound of my heart, and had me wear a monitor for 24 hours. My heart was fine so now I know those symptoms were fibro and costochondritis. I don't worry about them. But, you don't really know what is going on so you will worry about it, too, which will make the fibro worse. So, please get checked out. Chest pain...especially when it goes down your arm and in your jaw....is nothing to guess about. It's probably nothing but you do want to be sure. Please let us know what you find out.
Sherrine