If i have taken the first gardisil shot and had no side effects is it possible that i won't have any with the second shot?

Sure: Over 85% of people have no side effects from the shot. And those odds of no reaction go up if you've had one already and done fine. Even if your arm gets a little achy, it's a whole lot better than genital warts or the procedures you have to undergo if you get cervical hpv and have to have treatment for that. Or oral/throat hpv treatment - ask michael douglas (it's not pleasant).