do you know anyone that has a mental disorder?
I know a number of people my current job is case management and we only deal with clients with disabilities from metal illness, behavioral and physical impairments. 
Oh wow i bet that is tough work.  My dad has dementia which I guess would be considered a mental disorder
Dementia
Dementia is a broad category of brain diseases that cause a long-term and often gradual decrease in the ability to think and remember that is great enough to affect a person's daily functioning. Other common symptoms include emotional problems, difficulties with language, and a decrease in motivation. A person's consciousness is usually not affected. A dementia diagnosis requires a change from a person's usual mental functioning and a greater decline than one would expect due to aging. These diseases also have a significant effect on a person
a "Billboard" interview, Norwood further commented about the track, saying:
"I just felt like, [when] being gone for such a long time, you need to come back with something strong and shock people. Make them go, 'Wow, who is that? Oh my God, that's Brandy? I didn't' even know she can sound like that. Didn't know she would do a song like that?' Because It's completely different than anything I've ever done.