sided chest pain
isn't caused by <span style = 'background-color: #dae8f4'>heart</span>
problems; the pain
you discribe in the arm could be. However, you also mentioned that you sometimes have a racing heatbeat. If the heart
is beating too fast, the chambers cannot fill properly with
blood and therefore the body does not receive enough oxygen which can cause you to feel pain or weakness or dizziness. Most heart
attack symptoms include pain in the left
arm, jaw, stomach and for many women, in the middle of the back.