That really sucks and I’m sorry to hear it. If you can call it lucky, I never actually vomit in that nothing ever comes out. It’s always been dry heaving. I couldn’t even imagine how hard it must be to not even be able to easily drink water. I really hope you find a solution soon and I highly recommend sending all of your medical records to the Mayo Clinic like I did (you can start by filling out a form on their website) if you think your insurance will cover it. The worst they can do is turn you down.