Call another doctor, since yours doesn't take you seriously, and go through all of your medical issues with them. If you're throwing everything up then you're at a serious risk for dehydration. Once you get that all sorted out, please live in a bubble up until it's time for you to deliver.
We can't advise you because we aren't medical professionals. If you're vomiting all the time you really need to be seen by a professional about what's causing this. If it's your medication they will get you the help you need.
Re: Nausea and vomiting