My pre-flop stats are mysteriously tightening up. Fear?

[SpaceAce]

Until recently, my stats in the Absolute $3/$6 game were in the neighborhood of 28/20/2.35. I just noticed that over the last 30,000 hands, my numbers are sitting at 24.3/16.3/2.58. Since the first of this month, I am playing 22.4/15.4/2.82.

Over the last 30,000 hands, my WTSD is 35, my W$@SD is 54 and my BB/100 is -1.37 (by far the worst it has ever been at any game over 30,000 hands).

I don't know where this change in stats is coming from, but I worry that it might be a subtle result of getting my brains bashed in over the last few months.

Here are some pre-flop folds I routinely make:

UTG folds, UTG+1 (30/17) raises, I fold KQo in the cutoff.
UTG (26/20) raises, I fold AJo UTG+1.
CO (37/15) open-raises, I fold 44 on the button.
Button (30/17, steals 23%) open-raises, I fold A2o in the small blind.
UTG (unknown) raises, folds to mee in the small blind with KJo and I fold.
UTG (26/21) raises, I fold 66 UTG+1
UTG folds, UTG+1 (33/21) raises, next player (unknown) three-bets, I fold 88 on the button.
UTG raises, folded to me (or one caller) in the small blind with ATo, I fold.

Anything stand out as too weak there?

SpaceAce