I've measured myself using the Bra Intervention method. I'm 34 around my ribcage and 42 around my boobs when I'm bent over. So I think this means I'm 34FF. That sounds about right as I'm currently wearing 36DD which clearly does not fit well at all.
I'm quite squidgy around my torso so if I pull the tape measure super tight I'm 32. Which would make me 32GG. I'm aware that these measurements are used as a starting point. But I'm a bit confused as to which sizes I should try on as well. Can anyone help?!