Mayumi is a 17-year-old whose mother sought psychological treatment for her because of Mayumi's feelings of anxiety. Mayumi and his mother both report that Mayumi always needs to be doing something but that all the activity causes her to feel very tired. In addition, no matter how much Mayumi eats, and she seems to eat a lot, she loses weight.

Hyperthyroidism

Substance abuse

Explanation:

Hyperthyroidism is the situation in the body when the production of thyroxine hormone is made in huge quantities. The metabolism of the body is accelerated and because of this reason the body fails in gaining weight even after a good consumption of food.  

In the given situation, Mayumi's psychological symptoms of hyperthyroidism and substance abuse needs to be examined. The weight loss even after a good consumption of food is evident of such an issue.

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