Feeling empty or your feeling you mood darken? You might be very unstimulated.
I know its hard to find something that truly interests you; I’ve only found it recently (its this: my blogs and such), but keep trying different things. I know its hard but you won’t find it unless you keep looking.
Secondary depression is a depression in an individual who has one or more preexisting, nonaffective psychiatric disorders or an incapacitating or life-threatening medical illness which precedes and parallels the symptoms of depression. (link)
Secondary depression is essentially when you have depression secondary to another condition.. and in a lot of cases, the depression is “caused” by the disorder.
In the case of ADHD, its not uncommon for chronic under-stimulation to cause secondary depression.