Hmmm... generally either Schizophrenia or Bipolar Disorder or Trauma too. I believe Cluster As some of them have this feature, but I am not sure, as I know below 0 about schizoaffectivity and schizotypal disorders, but again they found a correlation with Autism. I only know a bit about PPD.
Also exhaustion and somatic problems, i.e. anemia (iron deficiency etc) or insomnia can lead to those symptoms.