Neither Alex.

Dysfunctional behaviors aren't a mental illness. My definition of dysfunctional behaviors are behaviors which change and move across the spectrum of "normal" behaviors, based upon the perceived behaviors of others. The perceptions are sometimes correct, sometimes distorted.

Unsound reasoning is not a mental illness.

Oversensitivity to feelings is not a mental illness.

You need to educate yourself more about the distinctions between dysfunctional behaviors and mental illness apparently.