Thanks for all the replies.
Over the last year and a half this site has been on a roller coaster. But we took a huge hit around Oct 4th this year and then again on Dec 17th. I would consider it a "off the cliff" type of drop. For our main keyword we went from #2 to # 87 overnight. So yeah, we got dumped pretty hard on all our major keywords.
Is there a way to post my url so hopefully people can take a look, but not have a back link to the site?
I really do appreciate everyone's help with this. Makes me feel like there is hope!