I have it really bad, too.
I drink *lots* of water. And here is the best thing that has helped me so far: cabbage juice. I juice cabbage with celery (also great for HB), apple, and kale. The apple and kale are just for taste. And it is lacinato (dinosaur) kale, not the bitter kind of kale.
The reason that I tried cabbage/celery juice is because I have read over and over and over that cabbage is an *excellent* and highly-effective remedy for ulcers and for HB, in general. I mean, it is so good, that a three week course with a pint of the juice daily is nearly always curative for ulcers.
I know it sounds a little gross, but if you are like me, you will get to a point where you will try almost anything to get rid of the pain. HB has been so weird for me. I had never experienced it before I became pregnant. And now, when I don't juice, it is my constant companion.
You have inspired me to go and juice right now!
Good luck and good health to you!
p.s. the red cabbage is a little more palatable than the green, although both are excellent medicinally.