How long does this stuff last? Last night it felt like my chest was riping open. I went to the dr. and he did an ekg and my heart looks fine so I am not worried about my heart. I am just worried that this pain is gonna be around for awhile. I can only breath shallow cause it hurts so much. When I eat the pain gets worse, I guess the food in my stomach puts pressure on my ribcage. This is no fun. What to do?