I have a question about the warning signs for a heart attack . I m a 19 year old male who is slightly obese. I ve been feeling very mild pain in my chest for a couple days now, but nothing that would seem to indicate anything out of the ordinary. About 20 minutes ago, i had a totally random episode just walking across a room where my heart started racing and i felt a rush of blood in my limbs and head . This episode only lasted about 10-20 seconds and hasn t re-occurred so far, although i still do feel slightly flushed. This has never happened to me before I want to know if i should be concerned and seek immediate help.