How long can the excuse last?

As Lacie said, we came down with swine flu which has just been absolutely exhausting. Thankfully I have been able to make it to most school functions that I couldn't miss so I am not too far behind. Unfortunately I have lost this little thing called motivation which still hasn't returned. I am wondering how long I can use the swine flu as an excuse for no longer having motivation. Maybe it's time for a mini-vacation!