I have agoraphobia and have panic attacks if I try to leave my house
I find that people in your situation will go to great lengths to avoid them.
Yes it is hard so I just stay home unless I just have to go out
Do you have any family members with the issue?  I find it runs in the family, and deaths in the family can be a trigger.
Not that I know of most of my family does not really understand it and just think its odd
Well still make sure you get support from them, people with this issue have a higher risk of substance abuse and depression.
well yeah because when you stay home all the time its depressing
Treatment can help though.  Cognitive Behavioural therapy is what's mostly used these days.
Medications help too as a last resort I find
Whatever you do, just make sure you are able to leave your home!