What distinguishes anxiety disorder from ordinary anxiety?

Well you have to look at it like this. anxiety disorder is found in people who find themselves feeling stressed or scared on a daily basis. these people are mostly the ones who like to be left alone of you can find them in a activity that really interests them (something to calm them down). but regular anxiety comes from someone who is just nervous about something then and there. this may come from the workplace,school or public areas. but I myself had a friend with the disorder and found that she calmed herself down by doing art.