I'm a product manager....who is experiencing serious jetlag

So a few hours after landing back in NYC from Australia on Sunday, I was asked to shift focus somewhat from business development to product management, with a primary focus on development and integration of WikiAnswers.  I'm excited.  I've been indirectly invested in product development over the past few months anyway and for the moment, it's where I feel I can add the most value.

I'm not one to normally experience much jetlag, but I've been dragging all week.  The 16-hour time difference between NYC and East Australia is kicking my butt.  I'm hoping I'll get back to normal over the weekend.  Someone told me jetlag gets much worse after 30.  Damn, I'm getting old.