For yrs I always measured 34D (Debenhams, little indie shops, everywhere).
If I wore 34D I got backache & indigestion. So I wore 36C instead which were great, but fitters got snooty about me preferring 36C so I don't like going to real shops.
My old bras became loose so I sewed them up to be tighter, but the cups became too small (sigh). I remeasured under & over,
(breath out): 31/32 & 34-35
(deep breath in): 33/34 & 36/37.
I'm confused about the 31-32... I haven't lost weight, but I am almost 50. I started running a lot in last year. I'm confused about C cups when the cups seem too small now.
I guess solution is to order loads of different sizes from Boobydoo, but I'm a bit lazy & still might get bad fit. Ugh, what is my best bet for getting something comfy?