The truth is all dry dog food has been processed and heated to death as to make it a poor food item no matter how good the ingredients are. Just look at it. That dry, crunchy pellet was actually meat, veggies, etc at one time.
There is a new prescription medication for motion sickness/vomiting. It was mentioned on another thread. I would check with your vet and see if this medicine is a possibility if nothing else works.
That was probably when they were giving people the opportunity to help with Bella's medical costs to have her severely broken leg fixed. I certainly appreciate all those who did including my daughter. Hmmmm, wonder if that was why she kept nudging me to meet Bella. She has a pin in her back leg but you could never tell it.