If you're on mobile go to the left side side bar, next to the news feed is a what looks like a tool, click on it and press "most recent stories"
If you're on a desktop then go to the top of the page, under the status is a arrow on the right side that says "sort" and click on it, the press "most recent" for the recent updates.
If that doesn't work then i'm sorry, I guess your Facebook is messed up for a little while.
had this problem before. always fix it