Help me please!!! My beloved FB account wont let me Log in, whats happened?

[James]

When i log in facebook it is coming up with this message... 
" Your account is currently unavailable due to a site issue. We expect this to be resolved shortly. Please try again 
 in a few minutes" 
...why is this? Have i been banned? I have not done anything wrong.. At all! As a regular user, I'm sure you can get how scared i am that my account has been banned! But the big question is.. What have i done? Please answer, I'm worried sick my account has been blocked, Ive never done a single thing wrong on FB.. Ever!! :'(

Its now been about 5 hrs since i was last using my facebook as normal, I honestly am not sure how much longer i can take.. Im already starting to want to be back online!! I feel like I've had my heart stabbed, I just need my FB back.. I love it too much!