[Lauren]

My FB is working perfectly at the moment Remy.

Have you cleared your cookies and cache from your internet browser? Sometimes this causes a problem with FB.

If the problem still persists, it could be with the cluster servers you're on.
FB has hundreds of servers in a cluster, and we're all allocated a different server - if only one of those servers are being upgraded/repaired, then only a handful of people feel the effects.
However, since yesterday is a long time.