What psychological condition includes traits such as insomnia and feelings of guilt?

The psychological condition that includes traits such as insomnia and feelings of guilt is depression. Depression is characterized by a pervasive low mood, lack of interest in activities once enjoyed, significant changes in weight or appetite, fatigue, feelings of worthlessness or excessive guilt, and sleep disturbances like insomnia.

Insomnia, or difficulty sleeping, often results from the constant psychological distress associated with depression. As for feelings of guilt, individuals suffering from depression might ruminate over perceived failures or shortcomings, leading to a deep-seated sense of guilt that affects their mental health further.

Other conditions mentioned may present their own symptoms, but they do not primarily align with insomnia and feelings of guilt as defining features in the same way that depression does. For example, bipolar disorder focuses more on mood cycles that include both depressive and manic episodes, generalized anxiety disorder is centered around excessive worry and anxiety rather than guilt, and post-traumatic stress disorder involves symptoms stemming specifically from traumatic experiences, such as flashbacks and hyperarousal.