I'm so sorry your going through this. :( I don't have an answe or advice, but wanted to make sure you knew someone cared. What does your Dr say about meds not working?
See another dr! They can get it under control u just have to see the right dr. Good luck!
I'm not sure about the vomiting but i know you can take Tylenol 3 while pregnant for the pain. I've taken it my whole pregnancy, my due date was yesterday & everything is fine :)