Swings - multitabling - what should I expect?

[automaton_22]

I have just had an unbelievable 1300 hands, across which I swung up almost 4 buyins, then collapsed in a tilt-frenzy, down about 5 buyins.

The end result is that I am now about 1.5 buy-ins under where the day started.

I am a relative newbie, so am interested to know if this kind of swing an unusual occurrence? Or is this just the territory we are in?

Pretty gutted about the 5 buy-in collapse, and know I have some serious emotional control issues that I need to deal with, but that is my problem.

Comments about what sorts of 'swings' I should expect 3 tabling NL25 are very welcome.