I didn't receive any messages from Adsense and I have NO policy violations.
Again, whereas before ALL of my sites we're in a good range between 1 and 8 on the FIRST page on numerous keywords, they have no dropped to 10-15 range for same keywords -- ALL IN ONE DAY, ON SUNDAY.
Now a bunch of blogs, the non-actual-news site examiner(dot com), and YT videos all rank above me.
Just stuff I wouldn't even want to see if I were searching my subject. There's not even a single dot-com on the first page for any of these search terms, just blogs.
Maybe things will get better, but this is the first time I've been "hit" with one of these Google changes/updates.