You don't have to be housebound etc to have social anxiety. I know there's people here worse than me to but I also know I've definitely had SAD my whole life.
Why do you feel like you can't speak up when in a group?
Why do you feel like you can't do certain things because of the social aspects?
If you feel like how you are is stopping you from how you would like to live I'd say you probably have SAD as opposed to just being shy. I'm not sure of the exact cut off point but I just think SAD is a more extreme form of shyness.
