Running good or running bad at PP 100 sngs

[barry111]

Im new to SNGs (NL cash player, some MTTs) and Ive played 400 $100 NL SNGs, in the last month at PP. Results are - first 200 SNGs ROI = 39.6%, but the next 200 SNGs, my ROI dropped to less than 1%. My stats in the poor run havent changed much, VP$IP 17% (18.84%), aggression 1.95 (1.93%), but my won@s/d slipped 6% from 55%, and my won$ when saw flop slipped 4% from 43.35%.

The real story for me is the winning hands percentages in poker tracker...I cant find any other discrepancy between the 2 periods as significant as this...
1 pair - from 47.32% to 41.98%
2 Pair - from 64.15% to 53.10%
trips - from 81.67% to 73.4%
Str8 - from 88.57% to 73.81%
flush - from 84% to 82%
FH - from 90% to 86.54%.
Also significant are....
AA - from 96.36% to 86.59%
QQ - from 83.93% to 73.44%
AKs - from 72.73% to 60.87%

Since Im new to SNGs, I dont know if I was running good before, or if I am running bad now? Is it possible to run bad for 200 SNGs if you know your game hasnt changed? How significant are these 'hand winning' percentages at NL SNGs...are they far from the norm in either direction?

During the first 200 SNGs, I didnt feel expecially lucky, but during the second set, I have felt very unlucky every day...can the luck factor be this 'lumpy' over such a period? Any help is welcome...