I am having pain at the left bottom of my chest from a day before..i have gone through open heart surgery when I was 2 years old but I am absolutely fine from that case and gone through regular checkup in AIIMS Actually few days back I have started going to gym also ..just little bit confuse wheather this pain is of any severity or not Just having pain at bottom left of chest and rest all is fine ...I am feeling comfortable and do not feel any kind of discomfort.