Why do I feel tired after eating a lot of rice?

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Hello doctor! My mother has finished a course of HP treatment but her stomach still feels uncomfortable, eats quite little, each meal can only eat 1/3 cup of rice, if she eats a lot of rice, she will be very tired and can't sleep. So what did the doctor tell me to do to improve? Thanks for the advice doctor!
Anonymous customer question
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Hi, thank you for sending your question to Vinmec Health System, to your question, I would like to answer as follows: Your mother finished a course of treatment. HP treatment but not helping, don't know how long your mother has been taking it?
However, if the phenomenon you just described occurs, your mother should divide it into many small meals a day, and at the same time eat foods that are easy to digest, and limit greasy, hot and spicy foods to avoid this situation. flatulence, indigestion. If the above diet is not satisfactory, you should advise your mother to re-examine to find out the cause and have an effective treatment.
Specialist Doctor I Vo Thi Thuy Trang - Digestive Endoscopy Doctor - Department of Medical Examination & Internal Medicine - Vinmec Danang International Hospital.