Stress can impact both mental health as well as physical health. Stress may be impacting your mental well-being if you experience: Strong emotional responses and/or feelings of sadness, numbness, worry, frustration, fear, and anger Changes in energy, desire to do things you normally do, interests, and appetite Trouble concentrating or making decisions Difficulty sleeping, having insomnia, and/or nightmares Physical reactions including headaches, body aches, joint aches, stomach aches, and skin rashes Urge to engage with substances such as alcohol, tobacco, or drugs