I am having real trouble with underwired bras. They have been giving me terrible sores underneath my armpits where they dig in. I think I am a 34F but when I did the bra intervention thing I came out as a 32G. I promptly bought a bra in this size but it was way too big in the cup although fit nicely round my back. So I've gone back to 34F. I think I need to try some non-wired bras so any recommendations would be appreciated. Are M&S ones any good? So far I've been wearing bra tops which aren't very supportive but are very comfortable.