Some common signs and symptoms of mental illness include:
- Depression
- Anxiety
- Suicidal thoughts or actions
- Homicidal thoughts
- Anger or irritability
- Posing a threat to others
- Loneliness, isolation or withdrawal
- Feelings of helplessness or despair
- Inability to cope with grief or loss
- Aggressive behavior
- Tearfulness or crying spells
- Confusion
- Loss of appetite
- Difficulty sleeping
It is also important to keep in mind that these indicators may vary depending on the illness, age of the affected individual, and/or other environmental conditions.