a good way to see how your stomach passes bile thru it, is to be in the hospital with an NG tube down your throat to your stomach, it pumps bile out of your gut. If you go in the hosp. for obstuction, they will pump your stomach until gas passes or bm. anyway if you watch this thing work, about
every 45 sec.bile pumps out, that is also how gut works, like a pulse, bile gets moved thru our gut, so when you have mild obstuction and every 45 sec. or 1 min. you get gripping pains that is why. bile can't go thru. I've had 4 surgeries with 2 emergency surgeries for blockages.