PT numbers

[moldman]

Can someone help me figure this out? I know I've read before that it's normal for all of your winnings to be made up of just your big hands (QQ,KK,AA), but why is that so? For instance, in my past 200k hands, I'm +40k with QQ,KK,AA, but only up 24k overall. Now, I realize this isn't bad. My winrate is 3bb/100, but it seems I shouldn't be so bad with everything else. Granted, I've paid 18k in rake. But that still means I'm losing with everything else. Anyway, my brain just can't figure this out and was wondering if anyone had any insight as to why the winnings aren't more spread out.