You've got some kind of bug infesting your grow. It's immaterial to try to figure out exactly WHAT pest it is though... grab yourself some Dr. Zymes Eliminator... it will take care of thrips, spider mites, aphids, whiteflies - the bugs that don't chew holes in your leaves... it's organic and can be used all the way through harvest.
And start a diary! You've been on this site for more than 2 years... time to join the community!
Good luck...