Iphone 5 screen flashes colors when I get a notification?

I've had my Iphone 5 since Christmas, and in the past few hours the screen flashes whenever I get a notification banner. It especially happens when I receive a text from someone and open the keyboard. The keyboard has turned green, blue and white solid colors. The screen also went black once, and gets strips of black across the screen. Nothing has happened to it, I don't need a software update, I closed the apps, and restarted my phone, but it is still doing it. Should I go into the genius bar?