Few of my sites really tanked. They were in top 5 in google, newly built sites, have same domain name as keywird and the traffic is regional for a country. Suddenly my site is nowhere to be found. It just happened few days ago. I only linked from one bigger site with same theme that is very popular and authority for that keyword in the world. But this small regional site just tanked. I think google just went insane, banning anything everywhere. I did not spam, I offer solution for a specific health problem. This just sucks big time.