Answer:
Zane may be diagnosed with major depressive disorder.
Step-by-step explanation:
In the description there are two symptoms:
- Weight gain
- Low energy feeling.
According to symptoms, she gained weight, it means there is nothing wrong with biological systems like digestion or other metabolism related disorders.
But she sleeps for 10-11 hours and feels that there is no energy in her.
She feels low self esteem and depression.
These all symptoms indicates the major depressive disorder.