I have not had this problem of not being able to leave the house, however my sister has. Me an my sis are like partners in painic.
She has had problems with leaveing her home off and on. As of now she will only go to my house and ride in the car. She truely believes that if she goes somewher like a store or something, as soon as steps into the door way of the store she will pass out and die.
So your not alone!!!
I really wish I had some advice to offer but I am still tring to figure out how to help my sis. I have not found anything to work yet.
I cant wait to hear some other thoughts on this.
Puttin' the Fun in Dis-fun-ction!