Time to ask for help

[MathBabe]

PartyPoker. $.50/$1 Limit, full tables.

Since the beginning of the month: 4,267 hands.
I'm averaging -2.53 BB/100. Note the negative.

This isn't huge money, of course, but it concerns me. It looks like only about 1/3 of my sessions are winning ones. I don't want to piss away my Intertops bonus playing $1/$2, trying to clear it.

I've been posting a few hand histories here and there, and I can post more. But where should I look to find an overall leak that might be causing this? Is it worth posting PokerTracker stats for you guys to take a look at?