It is an animal that works, provides assistance, or performs tasks for the benefit of a person with a disability, or provides emotional support that alleviates one or more identified symptoms or effects of a person's disability.

@Joshua Levasseur Insomnia can be a symptom of a lot of different things.

You would want to know the symptoms, the current diagnoses, run tests and any you would want details on what treatments have already been tried.  

I can go to WebMD and diagnose my own symptoms, or I can go to a doctor when it matters.

You pull up this app, type in symptoms, and boom - you get to track your plumber on his/her (more his) way to your place.

An Assistance Animal is an animal that does work or performs tasks for the benefit of a person with a disability, or provides emotional support or other assistance that alleviates one or more symptom or effects of a person’s disability.Please complete this form completely and return it to us.

Without these things I find myself slipping into lethargy and depression like symptoms.  

I think you are on the right track to solve the problem before you fix the symptom.

We replaced the main breaker on another house too so we recognize the symptoms it is for sure the breaker. 

If he does take it, Bill's suggestion will certainly help with his symptoms and maybe you will profit too.