Mental Illness – are health conditions involving changes in emotion, thinking or behavior (or a combination of these). Mental illnesses are associated with distress and/or problems functioning in social, work or family activities.
Depression – is a common and serious medical illness that negatively affects how you feel, the way you think and how you act.
Heartache – emotional anguish or grief, typically caused by the loss or absence of someone loved.
Loneliness is the feeling of being alone, regardless of the amount of social contact.
Sorrow – a feeling of deep distress caused by loss, disappointment, or other misfortune suffered by oneself or others.