Dysthymic Disorder, now more commonly called Persistent Depressive Disorder (PDD), is a type of chronic depression. It involves long-lasting, low-grade depressive symptoms that can affect a person’s daily life and overall well-being. 

Symptoms of PDD are like those of major depressive disorder but are usually less severe. They include: 

• persistent feelings of sadness or emptiness 

• loss of interest or pleasure in activities 

• changes in appetite or weight 

• sleep disturbances (insomnia or hypersomnia) 

• low energy or fatigue 

• difficulty concentrating or making decisions 

• feelings of hopelessness or worthlessness 

• thoughts of death 

• suicidal ideation