Wow, I guess I was the only one who didn't end up constipated afterwards. Not that I recall, at any rate. I was out of work a week, came back one day and missed the second day because I was at home with diarrhea again. I had it a lot afterwards (of course I had it a lot beforehand too). I have come to the conclusion that my gall bladder wasn't messed up, my liver is--it produces way too much bile. Of course, there's nothing they can do about the liver (that I know of) and the liver was certainly making the gall bladder hurt horribly, so I'm not sorry it's gone, but I still have the bile problem. I've been doing pretty good lately with a combination of Welchol and calcium supplements.
Here's something I have learned first hand and my mother (a nurse) cofirmed it: low-fat diets cause constipation. The problem with eating more fat to have less constipation for us post-gb people is that we don't digest fats very well and they can lead to gas cramping and, more often than not, diarrhea. So you may need to adjust the fat in your diet to find your balance. After surgery it can take 6-8 weeks (or longer) for your guts to adjust to the levels that they will retain most of the rest of your life. For instance, after my surgery I had to avoid pork and red meat for a month because it made my diarrhea worse. After a month, though, I was able to add it back in. I still go through periods of time, though, where I can tolerate caffeine and other times when I can't. I've finally resigned myself to no more cokes.