Here you go… 
singletrackworld.com/2009/02 … d-returns/
Enjoy 
Hi the taff just read that web page about picalax had not laughed so much for years,i have been through all them tests before not nice next time i get it done i will have a smile on my face that will get them worried thanks bob
It could be because you changed from days to nights? But my wife had the same problem and she is now facing a death sentance. Get it checked out.