I had the same thing.
I went Tuesday morning for my 3rd fill. My dr. put me at 5cc’s. I drank my water fine. Left the dr. office and was driving home when I felt like I had to burp. I threw up, not only once but 4 times on my way home. Nothing went down not even my own saliva. I called my husband to come home and take me back to the dr.
Dr. took out .5cc. I drank my water fine at the dr. but when I got home at evening I had some slim fast, it came right up. by this time the dr. office was closed and I didn’t think if I went to the emergency room no one there would know what to do. So I just suffered throwing up every 30 mins.all night long until the next morning, I called the dr.office and told them I was on my way back again. The dr. unfilled me, I have to wait until Nov 18th to get filled again.