Lost all my playlists with newest Version of iTunes 12.1.0.71

I have just down loaded the newest version of iTunes (12.1.0.71)on my Laptop and lost all my playlists and CD's I burned....all that is left is the music I have purchased on iTunes over the past 8 years. I called Apple support they said they were sorry but there is no way to recover your playlists.....can anyone help