I like to look at my google analytics page every now and again and I have noticed something weird, the top search keyword in my Traffic sources is my site name - SpazGamz - which considering the sites low traffic their shouldn't be that many people looking up the word SpazGamz on google? Is their some reason why this would be happening?
May be the reason as google shows the keywords in that way only. Take a look at webmaster tool, whether those traffics are actually converting.
I would log a message with analytics support, it might be the way you've integrated the tracking code for example