I know this sounds like a typical whiney posting, but it has just knocked me to see my previous 17ptBB/100 form getting a brutalising on tables I know I can beat.
Your winrate should be less important than your bankroll size IMO.
You cant continue to run at 17bbs/100, if you think you can you are looking too much at stats rather than at actually improving or building a bankroll.
Face it, you will run bad and loose buy ins. If you think otherwise its because you havent played enough hands.