Generalized Anxiety Disorder (GAD) is the most common type of anxiety disorder. It involves persistent and excessive worry that interferes with daily activities. You may also experience physical symptoms, such as muscle tension, stomach aches (stomach is in a knot), bathroom issues, or feeling jittery (racing heart). You may feel on edge, irritable, or restless, become easily fatigued, or have difficulty concentrating. Many people with GAD have trouble falling or staying asleep as worries cloud their mind. Anxious thoughts may revolve around everyday things such as family matters, job responsibilities, health or minor issues such as chores or appointments.

Panic Disorder involves recurrent panic attacks, which are accompanied by physical and psychological distress. Common somatic symptoms include: heart palpitations, sweating, shaking, chest pain, dizziness, feeling like you are choking or cannot breathe and nausea. 

Social Anxiety Disorder involves extreme anxiety and discomfort about being in social situations, in front of a crowd or meeting new people. These people are afraid of being embarrassed or rejected or looked down on. 

Separation Anxiety Disorder can affect children and adults. People with this disorder experience excessive anxiety or fear when separated or away from the person that they are attached to. This anxiety may also come about when just thinking about being away from this person. The fear can manifest as nightmares, physical symptoms and preoccupied worrisome thoughts. Children may try to avoid going to school or have a difficult time sleeping in their own room. 

A specific phobia involves extreme, unrealistic fear of a specific object, activity or situation that would usually not cause one harm. It can be very difficult to overcome this fear and often causes significant distress. People with phobias generally try to avoid the feared situations, which actually makes the fear stronger. Examples include being fearful of certain animals, flying, or public speaking.

Agoraphobia is the intense fear of being in situations where they may not be able to escape or have help. These situations may also be perceived as embarrassing. This fear is so significant that it causes people distress and interferes with healthy functioning. People with agoraphobia may avoid public transportation, leaving their house, being in closed or open spaces, or being in crowded areas.

Children with Selective Mutism avoid speaking in some social situations (such as school or new situations), although they typically will speak in environments where they are comfortable (such as at home). They are able to speak and have normal language skills, however, anxiety prevents them from speaking. They may grunt or make noises to communicate when anxious or uncomfortable.