I'm going through another downswing. I'm perpetually in another downswing...probably 2,000 out of every 10,000 hands I swing pretty hard down.

I've played approximately 2000 hands today, and I'm down approximately four buy-ins.

Things of note in this period:
Twice I was stacked with two pair vs a set (the set being the same denomination as one of my pairs)
Twice I held a set under another set on the flop.
Once I was outdrawn with the nut straight vs a set.

It has gotten to the point where I almost can't ignore geting reraised preflop when I hold KK. Today I held KK ten times and was stacked four times. All of them all-in preflop, one a bad beat and three by AA.
Over the past 50K hands, I've had KK about 220 times and someone else held AA about 12 times that I could find. That's approximately 5.5%. What ever happened to 1 in 74?

On the other hand, I held AA eight times today and was up against KK zero times. In the past 50K hands I found five times when I held AA that an opponent had KK.

Anyway, these streaks are not uncommon. I often have five or six set under set situations in a similar time frame. My question is this:

If you had a day (or 2,000 hands) like this, would you consider it unusual? A bad run? Variance?

I don't fault myself for putting money in the pot with KK or a set or nuts that get outdrawn. But the KK is getting expensive when up against AA. And I keep having retarded streaks like this, so how long can I go about "not faulting myself?" I was stacked for a full stack nine times during the 2000 hands. I stacked someone else a few less times. I'm not always getting the money in with the best of it. With hands I'm supposed to? Yeah, I think. The typical advice is "go broke there, suck it up."

I just don't know if my downswings are 1) typical variance, 2) atypical variance that still isn't my fault, or 3) my fault.