Hey guys. Need your help. On Nov 17, most of the ranks for my keywords just dropped like crazy. Some keywords went from Page 2 to Page 7, some others dropped from Page 5 to Page 12, it all happened within a day. I'm trying to understand what was done wrong and how to recover. See these screenshots: Things I did during October-November: Oct 20 - ordered small SpeedRank package on BHW Nov 3 - ordered small Sherlock package on BHW Nov 5 - ordered a blog post, published it on my site and cross-posted it on one of the most authoritative publishers in US with a link to my website (Alexa top 100). Nov 11 - one more blog post, same steps, published on my own website, then the next day cross-published it through authoritative publisher. Somewhere between Nov 11 and Nov 17 - did some changes to Title, H1 and Meta Description. Created Google for Business account. Long story short: they sent me a verification postcard and marked the account as a potential spam until I verify my business (probably because I have another account with the same business name/address -- lost access to this account). Nov 17 - updated Yoast SEO plugin which, apparently, had some bugs in the latest release. Not sure if that's something related, but still. Any ideas/recommendations? What should I do?