I did my homework on the bra size threads, went to JL and got measured. Turns out I am a (rather irritatingly rare) 30DD. Bought a couple there and then.
I am having Ishoos though... It's nigh on impossible really hard to find the blinking size, so I bought a couple of 32Cs, which do seem to fit pretty well. However, I'm finding the 30DDs really quite uncomfortable - I know the band is supposed to be tight but surely it's not supposed to hurt and leave red marks..? I have eaten way too much cake put on a slight bit of holiday weight but I've had this issue since I bought them.
Any advice? Am I asking really stupid questions?!