Your biggest -BB swing!

[HEIFER]

So I have went backwards -700 BB in less than a month, like 3 weeks at 10-20 and 5-10. Prior to this my winrate while 4 tabling has been 2.1 BB over 200k hands @ 5-10 and 1.6 at 10-20 around 125k hands. It seems ever since this monster thing took off it has caused me to run bad, or atleast thats my excuse, am I the only one getting ass raped like this here of late? I have also had been watched for a couple days by a well respected poster, and he states that there is nothing I am doing to warrant this, he and I play similar I just need to continue working a few minor things. This is all in like 25k hands worth of play. So has anyone else experienced this?