Melstar,
I'm no shrink, but it sounds like agoraphobia. Is there something in specific you are afraid of? For instance, fear of being mugged or getting into an accident. You need to get to the root of your fear and understand it before you can get over it.

When you go out with another person, do you feel the same level of panic?
Are you allowed to keep dogs at the house you live in? I'm thinking in the form of a therapy dog. They are allowed to go everywhere with you.

I hope you are able to get ahold of a counsellor who can help you either through talk therapy or medications or both. You shouldn't have to be confined to a house all day. Do you fear interactions with other people as well? Get on this problem as soon as your can. Don't let it rule your life. It can also be dangerous for you to be behind the wheel of a car in that state.
Let us know how you are doing.

Sam2