Examples of anxiety disorders include panic attacks, obsessive-compulsive disorder, and post-traumatic stress disorder.
Symptoms include stress that's out of proportion to the impact of the event, inability to set aside a worry, and restlessness.
Treatment includes counseling or medications, including antidepressants.
Consult a doctor for medical advice
Sources: Mayo Clinic and others.
More than 3 million cases per year in US
Treatment from medical professional advised
Doesn't require lab test or imaging
More common in females
Can last several years or be lifelong
Emergency room visit recommended in severe cases
Family history may increase likelihood