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Dr. Paul Brazzell here.
This is quite concerning.
I am worried about a foreign object or some other some physical obstruction to the gastrointestinal tract.
Of course this could be a simple case of gastritis but it would have not been going on this long.
I am sorry to have to recommend that you have Zara examined. They can give fluids and anti-vomit medications and take x-rays of the abdomien to look for a foreign body or signs of obstruction.
Are you able to take Zara in?