I am a fellow CP person! I have trouble sitting up for more than 30min at a time! Because of pain and nausea, I even have trouble walking upright! If you have CP taking out the gal bladder, doesnt cure your CP......why cant you sit up, is it because of pain also?
Try posting this in this forum
http://www.medhelp.org/forums/Gastroenterology/show/68
I think you'll get a better response.