I am very concerned but want to learn more. What did the ER say was the physiological cause of this vomiting? There are many possibilities and I think it may be an important glue to a medical problem. Occasionally people get gastric infection from contaminated bile. I also have a close friend who had vomiting and now bowel movement for 14 days after a colonoscopy at a hospital. It does happen. There are reason why our bodies react in a certain way and it is important to gather a much information as possible even though it is very distressing at the time.