What is wrong with my Facebook!?

Okay, before I begin explaining anything, here is what I've tried so far;

-Tried with Opera, Firefox and Google Chrome

-Deleted all caches, history, etc.

-Refreshed page a bunch of times

-Restarted whole laptop

-Disconnected + reconnected internet a f**kton of times

But anyways, here's the problem;

I have two facebook accounts, for a few days or so, I was using one in Firefox and one in Google Chrome, (but before that I was just intergrating between both on FF alone) and I started using my regular (i.e the one I mainly use to talk to people I know IRL) account on GC and my other account which I use mainly to manage different facebook pages I own.

Today, everything was going fine until some funny things started happening when I tried to log into one of my pages (a page which is linked to both accounts, which I had logged into using the FF account fine sometime earlier, but then tried to log into using the GC account but that's when things started f**king up) and I was just getting a white screen.

I tried to push the back button to head back to my account, but it just left me with a white screen, and for some reason, sometimes I can log into either account fine but not any of my pages, and sometimes it leaves me with a white screen no matter what I try, it just won't let me and I have no idea why.

Help please? I really need to get into my pages (I'm the main/only admin on most of them, so yeah)

I think it might have something to do with the fact that I might have logged onto the page using both accounts at the same time, but then again, I don't really know.

Help?