Can't win anymore

[Chino46]

I used to be a solid player at .50/1.00 limit HE, averaging about 1 BB/hr playing about 1200 hands per day (two tables at a time). I had a bad day now and then but two bad days in a row were rare. But suddenly thats all changed. I've lost for about the last 8 days in a row now. It's like someone flipped a switch somewhere that turned me from a winning player to a loser. I'm wondering if anyone else is experiencing this? I play at World Poker Exchange, Party and Pacific.