paining sharp pain inside chest lasting few seconds everyday

i'm a 20 year old girl. i've been having sharp chest pains since school days.
the pain is sharp and pricking from the inner side of my chest. and it lasts for
a few seconds. i experience this pain about 4-5 times a day. i'm working,
studying, relaxing.
when i was a child my parents noticed an extra sound in my heart. all tests like
ecg, echo etc were taken. and the doctors told that it was nothing to worry
about and that it's comparable to an extra 6th finger in the hand and it would
disappear as i grow.
i had one more heart check up when i was 10 years old and they said everything
was normal.
but i've always been having this sharp pain in chest since shool days.
[my heart beat is always a bit fast around 85 per minute.]
is this pain due to some heart problem?
is it due to some other problem in some other organ?
is is a pain indicating some serious problem?
what is the solution?
please help me.

[erijon]

I doubt if it's heart related. Sharp pains of short duration are not typical for pain caused by heart related issues. Heart pain is usually more lick a pressure, squeezing or heaviness and comes on with exertion and goes away with rest. Short sharp pains are not usually heart related.

Hope this helps,

Jon