As for menses, my main PMS symptom is that I become very very clumsy. I drop stuff all the time and I trip over constantly. So I guess you could say that I do become a little unbalanced. LITERALLY! Ha.
Also, my ability to navigate which is meagre at the best of times disappears completely. It's like the bermuda triangle in here (I'm pointing at my head)... all my internal navigational instruments go crazy and if my iphone isn't working, I basically just wander around, following the sun. Sucks to be a chick, as usual.