Anxiety disorders are a group of mental disorders characterized by significant feelings of fear.Anxiety is a worry about future events, while fear is a reaction to current events.

There are several anxiety disorders, including

1- generalized anxiety disorder,

2-specific phobia,

3- social anxiety disorder,

4- separation anxiety disorder,

5- agoraphobia ,

6- panic disorder.

Symptoms:

Increased heart rate, shakiness, headache, paresthesias, fasciculations, vertigo, presyncope

as palpitations, tachycardia, or Muscular, as fatigue, tremors or tetany.

Treatment

Psychotherapy. Also known as talk therapy or psychological  counseling, psychotherapy involves working with a therapist to reduce your anxiety symptoms. Cognitive behavioral therapy is the most effective form of psychotherapy for generalized anxiety disorder.

First–line medications are the selective serotonin reuptake inhibitors and serotonin-norepinephrine reuptake inhibitors. Benzodiazepines are not recommended for routine use. Other treatment options include pregabalin, tricyclic antidepressants, buspirone, moclobemide and others.