I have heard of people having more than one autoimmune condition, even as many as 3 or 4. I guess that would mean you could have two forms of vasculitis. I'm not as up on the technical data as some, though I've probably absorbed a lot through osmosis. If it turns out they are ruling out, WG/GPA, perhaps you should stick around in case they change their minds back again. People have done that and been considered honorary members for life, and anyone with another form of vasculitis would have a lot to contribute! Best of luck as they figure it out, and stay safe around Covid, our unwelcome vistior from outer space, it would seem.