That explains a lot. You probably do have an acid problem then. My GI's NP said that when you remove the GB, there's no longer anything to contain the bile when you don't need it, so it just drips out. And sometimes it goes up and sometimes it does down. In my case, it goes down--I struggle with D. In my mother's case (and probably yours too) the bile goes up. Since it's not really the same thing as stomach acid--and therefore prodcution of it shouldn't be stopped by drugs that stop the creation of stomach acid--that's probably why you're having problems with regular acid medicines not working very well. Of course, it helps if you can stop adding additional stomach acids to the mix, but my mother is on PPI's and has been for years and still has heartburn some. She can't eat raw veggies--especially not cauliflower or broccoli; that leaves her belching it up for a day or more and causes heartburn.
I take Welchol for my D problem. It absorbs bile in the intestines. What I don't know and what other people probably don't know either is would it absorb bile in the stomach as well? The use of Welchol for D is off-label--it's really a cholesterol medicine; I don't know if anyone's tried using it as an acid combatant for people with bile acid problems. Probably worth trying, though. It doesn't absorb into the body, so it doesn't cause any side effects, except consipation in some people. Although, because it absorbs stuff in your digestive tract, you can't take it with medicines that have to be very precisely absorbed by the body--namely thyroid medicines, but it may also nullify diabetes medicines. In some cases the timing of taking it can be adjusted so that it doesn't interfere with other meds--except in the case of thyroid medicine. A lady on here has tried it, but has never managed to be able to take it and take her thyroid medicine too and have her thyroid medicine work at full strength. But, if you're not on any drugs like that, might as well see if your doctor will give you some to try. My GI even had samples of it in his office, so the company that makes it obviously knows now that GIs are using it to treat problems. I've heard it's not that great at reducing cholesterol--although it has its uses in cases where people can't take something that will interact with something else, say heart meds. I keep saying they should re-market it as a post-gall bladder D drug.
Oh, by the way, Questran is in the same drug family and also works the same. It, however, comes in a powder that you mix into a bit of water. People that have been on here say that it works to stop the D, but that it also seems to give them excess gas. Welchol has never given me gas, and I find that the pill is easier to take, but given that you have bile so high up in your digestive tract, the powder form might actually work better for you.