Does anyone sit all day at work? I've started at a call center and sitting for 8 hours is making my back hurt and giving me sort of crampy tension feelings in my belly. I try standing up and pacing sometimes but it's not really working. My legs also cramp up and fall asleep. Does anyone have any tricks they use to feel comfortable? I can't imagine it getting any better as I get bigger! They have 2 pregnancy chairs and 5 of us pregnant ladies so we're all waiting for the other girls to have their babies! Thanks!