Step-by-step explanation:
I'm not a doctor, but the symptoms you described could be indicative of a serious medical condition. It is important to seek immediate medical attention for the person experiencing these symptoms. Vomiting large amounts of bright red blood and experiencing pain in the upper abdominal area could be signs of a severe gastrointestinal issue or other potentially life-threatening conditions.
In this situation, it is crucial to contact emergency medical services or go to the nearest emergency room for prompt evaluation and treatment. They will be able to assess the individual's condition, provide necessary medical intervention, and address any underlying issues related to her history of bulimia.
Please prioritize the person's health and well-being by seeking professional medical assistance as soon as possible.