While it is normal to have worries from time to time, anxiety disorders interfere with quality of life. Symptoms of anxiety disorder include persistent and intense fears or worries—and sometimes phobias. People with an anxiety disorder might feel a sense of impending doom or dread or have physical symptoms like an elevated heart beat, trembling, or sweating. They may have difficulties sleeping.
There are different kinds anxiety disorders: generalized anxiety disorder (GAD), social anxiety disorder (also known as a social phobia), and specific phobias. It is possible to have more than one anxiety disorder.
Health conditions like diabetes, high blood pressure, drug withdrawal, and others may be linked to anxiety.