Um yes! Maybe it was just the style of the bras that made you feel uncomfortable. Try shopping somewhere else and find styles u like
Some companion sizes to 38B could be 36C; You measure underneath your breasts for the band size and the fullest part of your breast [with your best bra on] and subtract the difference for the cup size. You may need a bigger cup; check out the web for a lot of sites who discuss band size vs cup size and how to arrive and a correctly fitting bra. Yes, different style bras will fit you differently, so keep that in mind.
No, show them to all. according to feminism bras are masculine things. Burn them.