I know how you feel. Hormones crap all over my physical functioning too. Seriously, first half of a cycle you could pretty much nuke me and I'd still be alert and healthy, second half I get weakened soft tissue, lethargy, lowered tolerance for stress, aggression, everything but the kitchen sink. (Is that the right saying??)
It's a pretty bad design if you ask me. Evolution really messed up there. It seems pretty wasteful to go through that every month just so that one day, if I wanted, late in life, I could have a baby.