I hope nothings wrong with Lexi.... No food what so ever since Saturday, seems like a very long time to be with nothing in her tummy... How about pedialyte, or gatorade to replenish her loss? My

gizmo had an episode of vomiting when I changed his food, and he developed an intestinal infection due to the change... They even went to the extent to have exploratory surgery on Lexi...That poor baby... Why don't you get a second opinion?
I hope your baby recovers soon, will be praying for her!!!