Google is playing with two of my sites like a cat plays with a dead rat. Medic update Both sites lost a lot of ranking. Update 1 week ago Both sites got a boost in rankings. Rankings were still not like before, but got some keywords back to first page. Earnings increased a lot. Last night A heavy drop in rankings once again. The instability is incredible. I noticed that all of my old sites lost traffic on the 21st of March. All of my newer sites got boost in rankings. Both old and new sites have fresh published.