Hi, Thanks for the query. I understand your query. Pheochromocytoma has associated heart/ hypertension symptoms... which are lacking in your daughter. I feel she is in adolescence.. which is the age with lot of hormonal shuffle due to emerging menstrual cycles.The symptoms she has are more likely due to the hormonal imbalance she is undergoing.Anxiety, hot flashes, disturbed psychology... What she needs now is psychological assurance/ healthy balanced diet with good iron, proteins (soyabean products ), vitamins & minerals/ regular exercises/ concentration on studies./ relaxation techniques & positive thinking. For hot flashes she should be relaxed, avoid alcohol or smoking/avoid spicy food Thanks.