Oh yes, I'm finding that if i sit down for more than about 5 minutes it really hurts at the bottom of my ribs. I can lie flat or stand for hours but not sit. It tends to be worse for me if I don't get a good workout in, the biggest problem is every body has this thing that ll pregnant women should be sat down - not when it really hurts, I've tried explaining but only DH seems to get it :/.