As an HG survivor, I can say that the thing that helped me was to not allow my stomach to be completely empty. And the thing that keeps a stomach busiest is protein. A slice of turkey helped me sometimes. I had to do a lot of things, including a prescription to get through though and I was sick for 8.5 months. Maybe your illness will pass soon.
I run the Frontier Wholesale co-op in February, May, August & November