Anxiety can be experienced with long, drawn out daily symptoms that reduce quality of life, known as chronic (or generalized) anxiety, or it can be experienced in short spurts with sporadic, stressful panic attacks, known as acute anxiety. Symptoms of anxiety can range in number, intensity, and frequency, depending on the person. While almost everyone has experienced anxiety at some point in their lives, most do not develop long-term problems with anxiety.
Specialized coils that targetes deeper brain regions than rTMS. A patient wears a cushioned helmet (similar to the type of helmet worn during an fMRI). The coil used in dTMS was approved by the FDA in 2013 for treating depression but is currently being studied for the treatment of anxiety disorders such as OCD. The procedue is administered for 20 minutes for 4-6 weeks. Patients can resume their daily lives right after each treatment.
There are several different anxiety-related disorders. Some symptoms overlap across many of these disorders, and others are more specific to a single disorder. In general, however, all anxiety-related disorders feature worry, nervousness, or fear that is ongoing, excessive, and has negative effects on a person's ability to function. It can be tricky to decide when anxiety is typical or linked to a disorder, which is why diagnoses should be made by licensed professionals, such as psychologists or psychiatrists.
A panic attack is a response of the sympathetic nervous system (SNS). The most common symptoms include trembling, dyspnea (shortness of breath), heart palpitations, chest pain (or chest tightness), hot flashes, cold flashes, burning sensations (particularly in the facial or neck area), sweating, nausea, dizziness (or slight vertigo), light-headedness, hyperventilation, paresthesias (tingling sensations), sensations of choking or smothering, difficulty moving, and derealization. These physical symptoms are interpreted with alarm in people prone to panic attacks. This results in increased anxiety and forms a positive feedback loop.
Social Anxiety Disorder;Fear of social situations in which the person is exposed to unfamiliar people or to possible scrutiny by others. The individual fears that he or she will act in a way (or show anxiety symptoms) that will be embarrassing and humiliating, often times leading to avoidance of social situations and severe distress when participation in social situations can't be avoided. 
Occasional anxiety is an expected part of life. You might feel anxious when faced with a problem at work, before taking a test, or before making an important decision. But anxiety disorders involve more than temporary worry or fear. For a person with an anxiety disorder, the anxiety does not go away and can get worse over time. The symptoms can interfere with daily activities such as job performance, school work, and relationships.