Adderall side effects

I just just prescribed Adderall because I was having problems focusing and retaining what I was reading and studying. I am able to read the information just once unlike before when I had to read it 3 or 4 times in order to focus and understand, but when I take it, I feel like a chatter box and feel like I have extra coal in my choo choo. Is this normal? I don't understand how it can quiet your mind, but make you feel chatty. Can someone please tell me. Thanks.