Is this a losing streak or do I all of a sudden suck?

[Bytestream]

My first 30k hands of pokertracker (been playing years longer then that though) had me coming along nicely at 2.6BB/100.

Sunday I started losing streak unlike anything I have experienced before. Down about 150bb in 3k hands. Its ugly. I feel like if theres a hand that can beat me, its out there. If im on a draw, it misses etc etc.

I've sorted the stats and noticed that for the first 30k hands I sustained a Won$atSD of about 51.5% Is this about what it should be?

For the last 3k the number is only 45%. The rest of the numbers are basically the same.

Is this indicative of a bad run? or do i suck and was lucky before?

KK 14 times, down $15. AKs used to win for me about 60% of the time. During this run I have a $64 net loss with the hand at at a 22% winrate.

I dont know what to make of this. I figure winning an extra 6% of pots (going to SD about 32%) would mean winning roughly 55 more pots? With 4 bb in each pot, that would cover the loss and then some. I dont know if that the right way to look at this. Any advice?