I feel your pain Catrin. All of my weight is in my stomach and hips. It's not that bad when I'm standing, but when I sit, it's like my body sucks all the fat straight to my stomach. It's maddening.

Yesterday I spent a good 5 hours in the car and the bulk of the time I focused on sucking in my stomach and engaging my abs. It's definitely easier with the upper abs than the lower. My stomach is actually a little sore today, so I guess I was doing something! I will continue to try to focus on my posture and try to get in more mat work.