I have a niece born in 1999 (22 years old), with HP disease. After the treatment period is over, my niece eats very little, if she eats a lot, it's easy to vomit. Eat foods such as beef and pork are not allowed and drink less water, sometimes 5% glucose intravenous infusion. The doctor told me that after HP treatment, if the patient eats less, eats a lot, is it okay to vomit?