Hope you found some bras!
Just wanted to post and say 'I know the feeling!' I'm a 10E/F (depending on brand) and I used to have all kinds of trouble finding bras (and swimwear).
I usually go to bras & things as they tend to stock stuff in my size. Also big girls don't cry I find to be really good & the fitters are great!
Panache is a nice brand.