How very odd Charmion that the American sizing system avoids E and F! Here, there is a size DD which is for breasts that are rather long in shape.
I have to have the band very tight to prevent it from riding up. So if, as Nigel suggests, I did my bra up at the front then slid it around, it would hurt my poorly arms even more. (I have had a go at this method but found it a bit too painful) While my husband was in Africa last August for several weeks, I had to go bra-less, and as Steve says, they were practically polishing my shoes, hee hee.
Thompson, I have assiduously tried on quite a few M&S bras, but strangely none of them felt comfortable. I had to get the bra lady to do them up for me, as they weren't too happy about letting my husband into the fitting area to do his usual job. What they didn't know was that African men have very little interest in ladies' breasts as they see them hanging around all the time on a daily basis. Most of his family wisely go topless in the huge communal courtyard when the temperature reaches 40 degrees, and mums breastfeed 'on demand' which I find completely sensible and normal. Now ladies' legs and bottoms, which are always completely covered over there, seem to be of enormous interest...