Sounds like you are having a rough time. I thought for sure not taking the estrogen would help at least the nausea. Actually, I think nausea is the most gosh awful thing to have and I hate it.
Some more suggestions....
Maybe try to quit the acacia....I know Bev had a lot of problems with SFS bloating and I can't take them either.
Do you think the Librax could be causing this? Maybe you are having some side effects from it.
Have you tried OTC Phazyme for gas? It helps me. Have you tried ginger for the nausea....I've never tried that but others say it really helps.. I use Pepto bismol and eventually it helps a little. Also, maybe take a pepcid for acid before bed.
Are you eating more than just crackers? Like small amounts of rice, mashed potatoes, bread, pasta,etc?
I'm so sorry that we can't seem to find out what will make you feel better. I may have already mentioned some of these things to you but I can't remember.