Videos from YouTube aren't showing up on my Facebook anywhere??

I press the Facebook button on YouTube to post it onto my Facebook profile and You Tube says that it has gone through to my profile, but when I click over to FaceBook, nothing shows up on my profile. It is not showing up at all on my FaceBook pages, news feeds, or videos. It just does not show up??? Can you please help me??? I have tried with different videos and it worked before this change in Facebook??? HELP???