Generalized Anxiety Disorder is associated with irrational and overwhelming fear and worry. Unlike the situational worry that all people experience, symptoms of GAD are not specific to a time or place and they last for longer than six months. Common symptoms include pounding heartbeat, racing thoughts, insomnia, upset stomach, irritability, anticipating the worst, poor concentration, and tremors or twitches.
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Post Traumatic Stress Disorder (PTSD) is a disorder that occurs after a traumatic event, such as bodily harm or the threat of bodily harm. Major characteristics include hyper-reactivity, feeling like the trauma is reoccurring, avoiding reminders of the trauma, and emotional and cognitive changes.
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Obsessive Compulsive Disorder (OCD) is a disorder characterized by intrusive thoughts (obsessions) and the need to act on them (compulsions). Someone with OCD has repeated, intrusive thoughts or images about a particular subject, does the same action over and over, feels out of control of their thoughts or actions, experiences a decrease in anxiety while doing the ritualistic action, and spends a significant amount of time on rituals and thoughts.
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