Page is a not externally linkable
-- Google SEO News and Discussion
---- Bouncing in SERPs - If it's not Rank Modification for Spam Detection?
n00b1 - 4:15 pm on May 9, 2013 (gmt 0)Thread source:: http://www.webmasterworld.com/google/4570669.htm
So it was :D. I have also experienced this (and currently am). I also believe that waiting it out is the best course of action, but not necessarily the easiest. It's so tempting to fiddle around with things.
Brought to you by WebmasterWorld: http://www.webmasterworld.com