Facebook question

All day I haven’t been able to get into my notifications. Messages and profile, yes, but not notifications.
Anyone else having that problem?

No, but I did just see a message prompting me to create and memorize a six-digit code that will, from now on, apparently, be required of me if I want to see my messages or FB “history”. Could be related, since it implies they’re making changes to our access to stuff. Unintended consequences, maybe.