I would say try an ssri antidepressant which also work well on anxiety. Three months ago i couldnt leave the hoyse and when i did id run out of places because of my emet. It started to come on gradually over the course of 7 months and my stomach felt wrong i know now it was anxiety. Ive been on ssri's for 6 weeks and in the past three days ive improved so much. Ive driven 150 miles, been on public transport, been shopping on my own and of my own accord and been in busy pubs. I couldnt have done this a few weeks ago. Im even thinking about returning to work now after fourteen weeks signed off. I never wanted meds but i realised i needed help and without them i was only going to get worse. They have turned my life around and i am not obsessing about my emet because im getting out doing things and not worrying about leaving the house because of it. I found id obsess so much about what potentially might happen when i was out that id build up my anxiety so much i couldnt go out. Please get help from your doctor