I suffered from these apart from the lack of sleep - I slept way too much during the crisis. But I found excercise really helped, I took my frustration at the situation out on the swimming pool and also it helps your general mood to excercise. And I also found a meditation/ relaxtion CD that really helped.
I also found distraction good. The one thing that helped me was I joined a choir and for 2 hours each week I didn't think about what was going on in my life at that moment, so something like that is really good.