Help! The bottom seems to have fallen out of my game

[theblitz]

I have been playing 0.5/1.0 on Prima and Stars for the last month or so.

All was going well.
Suddenly, I am losing BIG time.

I am down over 5 buy-ins in the space of 5 days.

I am down 10BB/100 hands! Someone is making nice money on me.

I have lost many hands to bad beats but I am sure that I must have been leaking money somewhere.
I am not panicing because I am still up overall but almost all of that is bonuses etc.

Could this be variance? If so, then I am willing to put up with it with the knowledge that there is light at the end of the tunnel (as long as it isn't a train).
I play 6-max.

I know I am going to be told to post specific hands. However, I am also looking for a more general reply.

Maybe I should just drop down a level and build up my confidence?