Well it could be a genetic defect in the stomach lining due to the throwing up. Or it could be respiratory problems. She could have an impacted crop or an infected crop or a not fully formed crop. The problem could be genetic, or it could be illness. It could be from parasites or from something...
Possible yes, but i wouldn't just shrug it off as that. If you find a veterinary office that says emergency care then they have to take all animals in emergency.