QUESTION: Is it normal for girls to have under eye bags? I have them, but I never see other girls with them.

Yes this is normal but you are right it is not very common. Your best bet is a good eye treatment. The best I have found so far is SkinRxClinic's Eyebright Anti-Puffiness is great. At good tip is put it in the fridge so it is cool when you apply it, this will also help combat the puffiness! Go to type "gelee" in the search box and the product and information will pull up. It is worth looking into!