From here on PC:

"A personality disorder is an enduring pattern of inner experience and behavior that deviates from the norm of the individual’s culture. In order for a personality disorder to be diagnosed, the behavior pattern must be seen in two or more of the following areas: cognition (thinking); affect (feeling); interpersonal functioning; or impulse control.

In personality disorders, this enduring pattern of behavior is inflexible and pervasive across a broad range of personal and social situations. It typically leads to significant distress or impairment in social, work or other areas of functioning. The pattern is stable and of long duration, and its onset can be traced back to early adulthood or adolescence."

To my understanding, the personality orders are about pervasiveness. Something that comes and goes doesn't seem to fit with that.