I feel really bad for people that have Agoraphobia. Have you ever heard of Agoraphobia?
Sounds very scary. I may have heard the word, but I am not familiar at all with the concept
Agoraphobia is an anxiety disorder where people are afraid to leave their homes. Famous people like Paula Dean had it. If you've ever seen the show Shameless, there is a character with it in the show.
Seems reasonable. To a certain degree i can relate to those who are suffering from this disorder. I may consider myself to have mild degree of that disorder
Panic attack
Panic attacks are sudden periods of intense fear that may include palpitations, sweating, shaking, shortness of breath, numbness, or a feeling that something bad is going to happen. The maximum degree of symptoms occurs within minutes. Typically they last for about 30 minutes but the duration can vary from seconds to hours. There may be a fear of losing control or chest pain. Panic attacks themselves are not typically dangerous physically.
Panic attacks can occur due to a number of disorders including panic disorder, social
. In the case of agoraphobia caused by social phobia or social anxiety, sufferers may be very embarrassed by having a panic attack publicly in the first place. This translation is the reason for the common misconception that agoraphobia is a fear of open spaces, and is not clinically accurate. Agoraphobia, as described in this manner, is actually a symptom professionals check for when making a diagnosis of panic disorder. 
People who have had a panic attack in certain situations may develop irrational fears, called phobias, of these situations and