I have had a very sharp pain in the left side of my chest that radiates down my arm and into my armpit for the past two days. Mind, you I am a very healthy 19-year-old female. About five months ago I had an EKG, ECG, and an echo when I had whiplash, all came back clear. Last night I had a very scary experience. I believe it was a panic attack because minutes after I was reading all of the heart attack symptoms, I became nauseous, had a hot flash, started shaking and feeling faint, and my heart started beating very fast. Fortunately, it only lasted about two minutes because I was able to calm myself down. I am extremely scared that I experienced a heart attack and that this pain is heart-related. Could the pain have triggered my panic attack? I have very bad health anxiety and I believe that any pain I have is something very serious. Or, could this be an actual cardiac issue?