The correct answer would be, Insomnia.
From the given symptoms, patient has the Insomnia, which is an endocrine system disorder.
Explanation:
Endocrine system is a system that produces hormones which regulate a number of body functions like
Problem in Endocrine system may result in various disorders. Insomnia is one of the endocrine system disorder. Insomnia is basically the sleeplessness. Low energy, irritability and mood swings are the normal results of insomnia. There are many causes of this disorder which may include the following:
So Sean has been experiencing lack of sleep and has higher than normal melatonin levels. These indicators show that Sean has Insomnia.
Learn more about Insomnia at:
https://brainly.com/question/12646027
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