@My_Media, I almost lost 40% yesterday. I am trying to see if there is a correlation here with your site health hype. We also have answers in my website. Some times, we show snippets from articles in Answers and similar titles in answers (based on question), not sure Google is considering it as "low quality" duplicate content.
Anyway, I've decided to modify my site, url structure, title tag, remove nofollow urls etc this weekend and see if traffic improves in the coming weeks.