According to the Mayo Clinic examples of signs and symptoms include:
• Feeling sad or down
• Confused thinking or reduced ability to concentrate
• Excessive fears or worries, or extreme feelings of guilt
• Extreme mood changes of highs and lows
• Withdrawal from friends and activities
• Significant tiredness, low energy or problems sleeping
• Detachment from reality (delusions), paranoia or hallucinations
• Inability to cope with daily problems or stress
• Trouble understanding and relating to situations and to people
• Problems with alcohol or drug use
• Major changes in eating habits
• Sex drive changes
• Excessive anger, hostility or violence
• Suicidal thinking
Sometimes symptoms of a mental health disorder appear as physical problems, such as stomach pain, back pain, headaches, or other unexplained aches and pains.
When to see a doctor
If you have any signs or symptoms of a mental illness, see your primary care provider or a mental health professional. Most mental illnesses do not improve on their own, and if untreated, a mental illness may get worse over time and cause serious problems.
If you have suicidal thoughts
Suicidal thoughts and behaviour are common with some mental illnesses. If you think you may hurt yourself or attempt suicide, get help right away.