I have only had GAD for maybe half a year. But I am pretty open about it. Some of my friends get it, some may not.
I also started a Meetup group in Chicago for folks with GAD. First meetings is Saturday. 12 going and 6 on waiting list.
There is a good feeling from being able to talk openly with others with similar issues, I find.
Lavc, have you see a therapist, tried medicines and different strategies. I really like ACT therapy. I'm taking Buspar.