Hi, during the past two years there are periods were i get heart palpitations, my left arm starts to hurt and numb and this goes up through the left hand side of my neck as well.. my chest starts to feel heavy, as well as my head. It lasts for about 3-5 minutes, and sometimes the pain in my arm lingers a bit.. it's happened about 5 times in the past 2 years, i think all times it has been after i've eaten something.. i'm not sure if it's serious, or if its just something like acid reflux? would be great to get an opinion...