A complex can be a building with multiple functions (eg shopping complex etc.)
A person with a hang-up about such a building would have a complex complex.
Of course if the building was part of a larger campus with several buildings, all with multiple functions, it would be a complex complex and the person with the hang-up would have a complex complex complex.
If the hang-up went beyond a simple neurosis, it would be a complex complex complex complex.
Let us suppose that the therapist treat this disorder became overwhelmed by the demands of his patients and had a nervous collapse. He would then be suffering from a complex complex complex complex complex.
(Of course, this assumes that the therapist's nervous collapse is a simple one.....................................)