Does God EXIST??

I used to have faith in God from my childhood days.But when I grown up and when I started to learn Science,mainly the evolution of Life,the earth,the universe,etc..it created a confusion in my mind...

Now,the confusion is whether I've to believe in God or not...

I used to think a lot while sitting alone,traveling,resting, dreaming about this fact...

Of course I believe that God doesn't exist..The reason is the belief in Big-Bang theory..According to it,the whole universe is formed as a result of a big bang or explosion..The reason for the explosion is due to the pressure exerted by some gases....

Again when i think how those gases were formed or when I think about the origin of the matter,it again make me think in terms of a Super natural power or God..

So again I believe in God

But still a question comes...If such a Supernatural power or God exist,then how come that power or God is created or what is the origin of that Super natural power or God??

This question is still not answered with convincing reasons...I have searched in internet..I have asked opinion to my elder Sister,who is my best friend, teacher & guide....

But I couldn't get a proper answer yet..

From the Internet,I got contradictory answers...All those answers were having a high degree of uncertainty...So I couldn't believe..Also my sister was helpless to clear my doubt...

Now I present this question before all of my friends including my best and good friends, teachers,cousins,relatives..I need your opinion on this...

Not only them anyone who wishes to share your thoughts can share...

So please put your opinion and comments about it only after thinking or only after realizing exactly about my question...I hope all those who love me would post a reply and wouldn't disappoint me

Thank you

Yours faithfully

Ravishankar S