I'm an Idiot

So i'm sitting down right now for the first time today because like a fool I've been working my tail off. I always do this and then wonder why my body hurts so much. This would not be a bad day of work for me on a good day...but the whole seven months pregnant thing is really throwing off my ability to engage in physical labor. Today I have done three loads of laundry, undecorated the Christmas tree, removed the Christmas tree from the apartment, took down my beautiful Christmas village (tear*), vacuumed up the huge mess from the tree as well as the rest of the apartment, found a new place for all of the presents that we got for Christmas, rearranged the dining room, moved computer desk complete with computer and accessories to the dining room in order to move the treadmill from the babies room into our bedroom (where the computer use to be), rewired our sound system so that it now runs through the computer, organized our dvds and cds, dusted, washed the dishes, and paid the rent. Dang. I'm pooped. And my body is going to curse me in the morning. Why do I do this?