I suffer from agoraphobia, have you heard of this?
Yes! It is an anxiety disorder. I am so sorry to hear it. 
Do you have any problems like those of agorophobia?
I actually do. I suffer from recurrent unexpected panic attacks. How long have you suffered with  agorophobia?
I developed it after having one or more panic attacks, causing me to worry about having another attack and avoid the places where it may happen again.
I know Agoraphobia is can be due to a combination of genetic and environmental factors. Do you know where yours came form?
Agoraphobia can begin in childhood, but usually starts in the late teen or early adult years — usually before age 35 — but older adults can also develop it. Women are diagnosed with agoraphobia more often than men are.
Do you find yourself avoiding open spaces, public transit, and shopping malls?
My main problem is feeling that I have lost control and might have a panic attack.
I understand, and I hope you can gain insight on how to feel better.  You do not have to fear loosing control.