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It’s natural to feel anxious sometimes. But when anxiety keeps you from doing things you want to do, it can be a problem. This chapter talks about the different types of anxiety disorders. These types are defined by the cause of the anxiety and by the symptoms . Later chapters will discuss how these disorders are treated. But remember, only your doctor can say for sure if you have one of these disorders.

Generalized Anxiety Disorder Doctors define generalized anxiety disorder (GAD) as

It’s common to have trouble sleeping if you are feeling anxious about something.

• feeling strong anxiety, • on most days, • for at least six months, • with no specific cause.