Signs and symptoms of mental illness can vary, depending on the disorder, circumstances and other factors. Mental illness symptoms can affect emotions, thoughts and behaviors. 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.
signs symptoms mental illness can vary  depending disorder  circumstances factors  mental illness symptoms can affect emotions  thoughts behaviors  examples signs symptoms include:  feeling sad down confused thinking reduced ability concentrate excessive fears worries  extreme feelings guilt extreme mood changes highs lows withdrawal friends activities significant tiredness  low energy problems sleeping detachment reality (delusions)  paranoia hallucinations inability cope daily problems stress trouble understanding relating situations people problems alcohol drug major changes eating habits sex drive changes excessive anger  hostility violence suicidal thinking  symptoms mental health disorder physical problems  stomach pain  back pain  headaches  unexplained aches pains
mental illness