There are several different types of anxiety disorders according the the DSM-IV-TR. Some symptoms of anxiety may include:
Anxiety attacks can include these symptoms and also include the feeling of panic, feeling like you are "going crazy" or having a heart attack, hyperventilation, etc. It is not uncommon for people that are experiencing panic attacks to seek emergency medical treatment, usually resulting in continued anxiety due unanswered questions.
Anxiety can be effectively treated with Cognitive-Behavioral Therapy. Individuals struggling with anxiety can also benefit from learning relaxation techniques such as deep breathing, thought-stopping, grounding techniques, and progressive relaxation.