To wait or to do something (lost rankings)

[Bruno]

I have lost yesterday rankings and traffic on 1 site, around 20 000 from search engines per month. Now i get just few visitors from G. My PR is the same, PR5, i was not hitted by lates "PR update".

To me it looks like a glitch becose i don't have anything wrong there or i don't sell links there, i got 20 nofollowed links from my categories which are relevant and not paid, they are my recommendation, nothing else. Like linking Wikipedia.

So to wait or to try reinclusion request?