Thanks Jenna and DisneyMarie,
I already got measured at VS not long ago after my bras stopped fitting.
As another DD'er, don't get measured at VS....they don't have bras that fit.

Another suggestion to get a real fitting. VS doesn't count. I found out that I was going up in band size when really I should have been going up in cup size. I was off by 3 sizes!
Oh and Wacoal is a great brand. Now I have cup sized out of them because they only go up to dd. So I am mostly wearing Fantasie.
I buy Wacoal at Nordstrom in a DDD cup. Don't know if they go bigger or not. I also buy Chantelle. I love the way they fit but the wire in them doesn't hold up as well as others. My all time favorite has been discontinued. It was by Goddess, #3010 and ran very small in the cups. A DDD needs a G with them. I just found 4 new ones on e-bay.
). I love Wacoal BodySuede and Le Mystere Dream Trisha.