I took her off all grains (even rice), feed her last meal around 8 pm, still giving her the Pepcid, and knock on wood she hasn't thrown up in 4 months (except when she ate the lime the gardeners put on the lawn). I then remembered the breeder telling me when I got her absolutely no grains so I'm guessing there was a problem with it in the family history, but who knows?
I am glad to hear she is doing better! :-) I think that doodles in general are sensitive to grains. I went to a pet store the other day and the owner even mentioned it and offers grain-free alternatives. Glad to know all is well. :-)