iMessage won't let me log in
For some reason, yesterday morning my iMessage acted as if I were a new user and told me to sign in or create a new account. So, I typed in my info and clicked submit. But, it took about 30 seconds to submit and then came to a popup that said: "Could not sign in. Please check your network connection and try again." I've tried it a bunch and it still won't work. My network connection is just fine and just to make sure, I even reset my modem and router and still nothing. My push notifications aren't working either and 1 or 2 of my apps aren't connecting to the servers. What's going on?? Is there something wrong with Apple or is it just me? PLEASE HELP ME!! I NEED TO SEND SOME MESSAGES!!
iPod touch, iOS 6.1.3, iPod Touch 4th Generation