I had my bra size measured at m&s today as a couple of my bras were hurting me and they said my bra size has gone up from 34dd to 36e. They had no nice bras in 36e and a very limited choice which left me feeling a bit despondent. Is there a way I can reliably measure my bra size at home to double check whether I am a 36e or is there anywhere that sells nice bras in 36e?