Should I get my hernia removed?

I have had a hernia in the middle of my stomach for as long as I can remember, and I'm currently 12. We never got it removed because every time we would go to the doctor to get it removed, I would get sick. So we just said "What the Heck" and left it be. It doesn't hurt or anything, in fact it feels like it's not even there. But should I still ask my parents about getting it surgically removed? And if I keep it, what are the disadvantages of keeping it? Thanks(: