Pokertracker stats - Is this swing ridiculous?

[Bendero]

I know its only 20k hands but I've broken down my hands into the month of November and December. November was great in that I was 3.62 bb/100 but then December was/is horrible at -2.92 bb/100. Then you can see the overall stats over the past two months which is a paltry 0.91bb/100.

A) How out of the ordinary is this swing?
B) Do bigger swings = worse player?

Commence Ragging...