Google out of wack the last 6 days

[Agent]

I noticed at one of my sites a drop in Google SE traffic at the beginning of the month. Looking at the results of a "site" query its almost like Goog rolled back part of its index to maybe 4 months ago (or dropped recently indexed pages). These missing pages don't show up as Supplemental. This gives me hope that they haven't downgraded those pages and only need to reindex them. The results of the "site:" are identical (from memory) to the query when I ran it months ago.