Generalized Anxiety Disorder (GAD): This disorder is characterized by feelings of anxiety caused by a variety of things without any particular trigger. A person may feel anxious right after getting up in the morning, with no plausible reason as to why he/she is anxious.
Panic Disorder: Panic Disorder involves sudden episodes of intense fear that can include symptoms like chest pain, difficulty breathing, dizziness, and a sense of impending doom. These episodes are called panic attacks. They can be set off by any triggers present in the individual’s environment (for example, sensory overload, getting into a fight, etc.).
Seasonal Affective Disorder (SAD): An individual suffering from SAD experiences a significant drop in productivity levels during particular seasons of the year. This is accompanied by prolonged feelings of anxiety and depressive tendencies during that particular season.
Specific Phobias: A person with a specific phobia has an intense, irrational fear of a particular object or situation (e.g., arachnophobia, the fear of spiders). This often leads to him/her going out of their way to avoid any encounter with that trigger, leading to disrupted normal functioning.