We men don't know how lucky we are. Our only item of intimate apparel doesn't really have to do a lot. My late first wife - we were married 47 years ago yesterday - whom I had met at 18, was well into her twenties before she found a bra that fitted. She had clearly queued up twice on the day they gave out bosoms, and hated hers, which encouraged the sort of laddish comments most of you rightly loathe. She would be the first to tell you, though, that that was not what attracted me. Sorry, chaps, if that's all you see in a girl you may not be much of a prospect.
In her later years she found the M&S undie counsellor at Tunbridge Wells to be very helpful, and continued to use their service even after we moved to France.
I hope PinkCosmos has some luck in finding something truly comfortable.