Agitated Depression and picking

I just recently found out about a subtype of depression called agitated depression. It can cause impulses to pull out hair and pick at skin. Has anyone heard of this before? It's a type of depression which centers on irritability, mood swings, and anger. Instead of the typical symptom of lethargy which comes with regular depression, there is an overexcited component...which I guess can easily lead someone to want to pick.