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 :)
See another dr! They can get it under control u just have to see the right dr. Good luck!
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?