The past day or so I’ve had to log on every time I leave the site even for a couple seconds. Like to check an email. It’s never been like this before and I haven’t changed any settings.

Try rebooting. If that doesn't fix it, clear the cache and cookies and clear browsing history.

yeah... i'm thinking it's something to do with your browser... i've logged in from a few different computers today and haven't noticed any issues.