My iphone 4 doesn't notify me when I get text messages?

It seems ever since I've downloaded the iOS7 update for my iphone 4, text messages sent to me don't notify me when received. No vibrate, no noise, not even a banner on my lock screen. My phone won't even tell me I have any unread messages until I go to my messages and then they will appear. What is weird is that other stuff notifies me like Facebook and games. Has anybody else had this problem and if so how can I fix it?

Maybe you ae it n your settings like that by accadent bc I have a opine 4 also and if that don't help mate go to an apple store and they can fix the problem.